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 0xbbc8ab22d5fe66f952e0c4a1de74c20cf27d65a6ae4cf43f48e336a95eb37536. Chain 2 (Bitcoin): anchored in block 953630 (2026-06-14T12:06:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/30b9f7aa-85b0-45ce-8c6b-b5b10e8bdda6.json and https://artists.proofprofile.net/proofs/artist/30b9f7aa-85b0-45ce-8c6b-b5b10e8bdda6.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 0xe40bc17e7988f03fa719b0caf0af6362c580ff6c5a5b8669c8a7fd4b12b40961. 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/QZNJY2319695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7294bb10e9b9990885a00d7843d282f8c486e4341f981b26bb9b9e344cac8e17. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/QZTVM2439253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277483e5ace2f474450e68199c9600433ac708f0e7d8a633fffbb7c405f12714. 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/QZTVM2439254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a04fc394b5983660087b12277a12fd0c4c5f859b9bb14b4617bc2d35896cab. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:57:55Z), 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/QZTVM2439256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30ee35c17506c5d3bd16f5478938e4431a4da26bf02fd56bb8431f1b121efa06. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/QZTVM2439257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8faee30a901f3d8b9d8cf33b2459345bce7654d1d22ec41c68d4a4550cd34d9. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:10:24Z), 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/QZTVM2439258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2c938ef2504de86d3c8c4b1b42424eabadbb70769c06c2cb801011068d56a38. Chain 2 (Bitcoin): anchored in block 958351 (2026-07-17T02:38:05Z), 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/QZTVM2439259.
Tribute to Late Pst Mrs Patience Umo Eno
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa50c65fe0d3ce3c8e51271db0bd0a717485f7761fc7b55a4df5525f47bb30515. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/UK6822500701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb6cd2740564671aa0df480b18f86cf8a9885c20b2198c43beaa3d907e50b30a. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/UK6822500703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d87aad97272b739440c2108b1b6684f0f9ab31e9d539ee1b792ad5ad27140a1. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/UK6822500704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70afce80cde15cba00cabff3159fa59185a712f76ee0b7b1d46518dda6856c45. 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/UK6822500705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b13649b9becd1d0e833120cd95493e460bc78a7eb631bad271ea218d719d1ad. 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/UK6822500706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e433ef7c0d3b8b6fed5b37a29fca6da35bd58442c7a8489d236a2a6acd31175. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/UK6822500707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c97ea3fe68849e261f52688bc3f7c41bea10bf99961dd00c115943a494499e7. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/UK6822500711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb46af527f8021accb1193dd82e26a943e2a9eb5056072a49edd09ac6c6b44922. 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/UK6822500759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x356344202cc05c84b56fdbb7d2b400899141cbdc88208a75a8f97b2552fa3feb. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/UK6822504232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a5639ab3660e8eb29b8626cfb5728e050bbeebb367e5a276dfe5b105d434ea. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/UK6822504233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f7ff188a4dda3b8d07c1e84c61a11fe0fe606dfc44f84f70044a8069d1021c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/UK6822504234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88571634ac5853c383cfd6e946a17234d777986b5b69f0473cb70a15e414f7f0. 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/UK6822504236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ec9d3b712e804a104d7369d38a04987e6f76c79fb1630103fbd0d7e0d01bd7. 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/UK6822504237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb376c83ad60e42ed8dc697c5210b5b304b448b39c83753082418dd7205a7df. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/UK6822504240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6606a6f1c149625a17d06904baa4debe078cdb7217a0d2ab42435e59055c9b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/UK6822508463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa96c196e75c923c6067609bc8dd8af13f154fc6951e4d8426bf0ce82c36b81d7. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:46:58Z), 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/UK6822508464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d706236e6573671a5d1fc3448b145c67793485712cf81c74741f03bbf71d3ac. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:38:31Z), 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/UK6822508465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05782675f1af3819443a0f0069f378c90608952d448191e745f031d75e727320. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:52:34Z), 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/UK6822508466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3033b278a19011872f76a91619fb8875215f8c0ed1d750bcd8627c7c39d2e10. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/UK6822515076.