1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a960a9dcd4ac96eee33b80c7df99e1bc605fb11b74efa5a5c48d7176bb23a42. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/25803a52-3baf-4803-8f8a-f4a0445098fc.json and https://artists.proofprofile.net/proofs/artist/25803a52-3baf-4803-8f8a-f4a0445098fc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982de8232ab9f5bee720cee94c92275b750595b24a9f2344b7cc5c741bc77180. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:34:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160100781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec147ca12a32974ea7be4f57cab489fd4ce3125007ac10b7d7296575639e2f80. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:49:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160201463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982de8232ab9f5bee720cee94c92275b750595b24a9f2344b7cc5c741bc77180. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160100781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4a681bde829cce3241c65b2a3b05ccf54e849d1a17b079628dc07497b98705. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160201466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3698571c8095dc9086a3cc4952f1d1347bbd3b302c324aa73c2293b1d3e0096c. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160201457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77da99eb75694af8cf051282edb2faabb786102db6015420c7fbb6145274b878. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:50:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160201470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338c324429fe2c4b09b0ffcdaf34909fcf72dbd3e0213daf61d945073529ade2. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160201474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9810957a2798abf7d89737e801e0d1e17e22c4ffee8b5313b87dc151c899d8f5. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160100437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86591687519d54e273f623adebb215ae1066315ac1dab2ca8fcbfa6c3e265e7. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160001368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec2e40586b3a720b8e69a36dd6180365a544e17dddc14490bce888a443d1fd5. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160100265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d4b65b57f3d17159b54df85c34a71e96e9df1f586ff634d08d810749ec03014. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160200139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878c949b7a049daf745cfe9ad47ae6907f45e71882b207ec4e65a5bf4f908c47. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160100262.
Colección de Oro - Los Solitarios - 20 Exitos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eebc0ee6bb676dbc0ac8cba17759b883fecd4cd7130f8d379587793a59ea33c. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:58:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160201412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa5c045cdbc11b418d6e0c3c60ca6cb9d287b82ff96d77ec631ad579a1c9cd9. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160001369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc154b79611f3ab2f80914313788ac3b6947b779256448d6d87b3561df88d3238. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:55:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160201473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d93cb641da456f4ce99eb475dc544ce1a78b345dec82efb147bd8bcbde5e01e. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160800731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e485f2ba736799fa3bd16f712306a9e07ad2a1d111f27218a2a4d95c9498eb. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T05:03:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160100266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f14113741060c405750d12dea63ceef23bce4f8fdd560c3b9ea78fe86156cf. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160201455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e10e9fbe87c34e6ec207e25d9d166ba009b928f3a88a295e9c2f8c3f4d7937. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:38:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160100272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ead0c79994a8e7df9f0e31ec8b2b99ecdcc60b9f7baa8dd39878ce48866d77. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160101866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4df6906ebb94a2be8a7a5b64e2297133b8cf85f6d05ed03d18b038aa86a0b4c4. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160102823.
Peerless 80 Aniversario - 24 Inolvidables
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f995b1d805801233cb1cad07734fe29f1f84abaf11c61bf33e75590aa20ecd. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160100261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec2e40586b3a720b8e69a36dd6180365a544e17dddc14490bce888a443d1fd5. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160100265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e485f2ba736799fa3bd16f712306a9e07ad2a1d111f27218a2a4d95c9498eb. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:57:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160100266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878c949b7a049daf745cfe9ad47ae6907f45e71882b207ec4e65a5bf4f908c47. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160100262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e59a2be6e21b15c7d401e787f0a4ee97f9f27a757ff06ca77a172c57e983e3. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160100267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c265f15e91986b3bb76a399b681934624c483ad60fcaa75ec7d01d7bd3cb02. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160100626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5beaca4fbca0a4da3c004c13183bcd8591433fa3f44dcddd35b03b018755fa2. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:00:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF016500667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd3e2481a79940b8613710b10259fc5e88f1df4d8bea191f328aa6c4cb21636. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF016500676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5520266a3bde5bb3a78937d9f96aedbd71ea85fc0a6ddcaa8f91e982063c253. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLM2272972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f45e439147b6ec2e1544d362994f6fcb4ac040192cc8ef82f4dada6a90d981. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLM2272977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3fdd5e76b9b3fb63c9544be02b3912871af96532ff2fdf739b7fa75a379ac08. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLM2272986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7c58e3354c467498c2b03f7f92660dd4cfe69d044bd07825d46360b2be0f94. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:03:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160100264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f69317c55374e3c95cb5de8cd7048876be3d8137833db299009e773dfeeed86. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:14:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160100629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c976ef6183e1a03db00fbacc22565fff821c22bf2f37e33e1545a216815c264. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160101867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x774639056e55ebd1f4d994a52268000e9a8cd6c34ceb4bb48341a84568ad8643. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160100778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982de8232ab9f5bee720cee94c92275b750595b24a9f2344b7cc5c741bc77180. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160100781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda12fafe655e8a46e23e4e38b2504c565cf4f104e37f64202f0bda886270ba89. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160500226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb647964073a3dee1c9547635216d4c6447a9bef15cbc6539272d8bf71298f306. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160100260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4edaf6657a244000c80908b54ae9160de527cf78d2f4ed0ff6f9db77890557f. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160200136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd27bf958e3803024cf249d03b0cbedd84faa4c5d345f5dafc33593e23a6b2408. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160101449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9810957a2798abf7d89737e801e0d1e17e22c4ffee8b5313b87dc151c899d8f5. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160100437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e5ed9c45e1e56507a3f732129fa81df13a8a17ea5a7450dc7504086a24b6a7. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160100270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d4892a02a5ad1ab140e6cd39bf79b0ff9705b4cabb81b65d3abb9c2ec141d8. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160100269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e59a2be6e21b15c7d401e787f0a4ee97f9f27a757ff06ca77a172c57e983e3. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160100267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb52d7521f39b102413709d83196888f1427d4b6eda970d3b94bde88b608ed34. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160100259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79fa05580c7c61f611c6ef5885a23dcfc0c1df642b58b2cd8af8a253d73aa45e. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160100268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d8dcb31c7f9c41c8bb6e6bd57c7a91b6de0b684651e9a5f5fb31c7f08efcb9. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160100775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d072ef94ee5eca64d04c214ec35f1c9aea3832c5d4e0a2367e22ebe00346a6b. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:42:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160100271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878c949b7a049daf745cfe9ad47ae6907f45e71882b207ec4e65a5bf4f908c47. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160100262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccaf00270c5d090ff48d7d326c0d6ade12b378c0c1b0a3923d1b679e63d1415a. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEP2592340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x573a46278fdd49773ac40e8a42077848edee9d35d148e7056d2f9201703ecdd5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF161300419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f8e9f2f5ef594d978992ac1c0d4b40b7f17b878811d68e609cd4ec6ce48b5b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160100273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61a18507b72275d230ea6e163f9cfe18f248d3ed984a456968b26396c49d4a7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160800737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9267c5e7b77a624ad19e0a367ebdc4c9f420eed3bbf15be80b600b008c6f6a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF161300714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08616baa18f72404be48010209faee4ee13d6a8369290f8a2c9b255e7f56fd07. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USESK1329279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6928ecae872231277c5a04be65cc09526a7bc5fbe7118aea5b88645be03465b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160201452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f2db2ba3bfe6b5e98104c86287c7e64dd4e10fea4e5ae9e69ca6bd34cc57b1. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF160001367.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch