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 0xf4ea0e9de361f9401c3f1f0f8346e7aa2d01f7ae01080639151314ba300ca0c4. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f824194a-3943-4b15-bf1c-378f9b1514bd.json and https://artists.proofprofile.net/proofs/artist/f824194a-3943-4b15-bf1c-378f9b1514bd.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 0x72ca285cd78bcc0ca447787bfc1b72da856a2e953a5009cd5c5a035c56ebd939. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QM7282448459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ca7a8e1598fa07588b24db7f9d4f5b4b307043fcb0ff5d32a2aa02b6033b97. 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/MXF160200164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7747b90edb2f3cd741fb29c5e1492b187458c278f75031a64652cefacb98c3e9. Chain 2 (Bitcoin): anchored in block 957611 (2026-07-11T21:33:50Z), 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/MXF160102142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b295491c4a54c3e5297574cbbafd6682fc7de0e957baff6fd547ef5e52a6f0b. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/MXF160200158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eedf11cb78d0b456cf128525cbce296f3562b334c564e37305dd2615d48035a. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:51:01Z), 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/MXF168700100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a45726c721350e8c5c1d4079ae0f26da75d29e1887d9e4f64557d8a5fca5ffa. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:55:48Z), 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/MXF160200167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1429556d4bd045b805b1adbf775023fb4e7ba6286a7a7ab03107397e3fbe3c90. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:10:33Z), 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/MXF160200165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a71a7e44b4139c4b430d615e3a6256049715c1b3cae28707c4908442242e347. 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/MXF160102141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1a951c92b87c7577472e923035f3b11a84d531c0a42d708e6bdc37e4274ffa. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:00:56Z), 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/MXF160101425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8faa229296681fbdf4bbc0e2679c259c80f60859052c4cc2386d7055ea3f751. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/MXF160001460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c1cd3895993e4292c9faea358acdcb7003fdddd0f9c0aa8b0b089bf67034e97. 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/MXF160204867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb257822bd9dd5d4353c2713f00c9a2dfc81ce08ea09c89f7890c04dc3c52eb. 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/MXF160001469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b78f9a4eb158ad01abb0f6e1f3bded4c58b889b4280c34ae265ec0b7e9fdf9. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:08:18Z), 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/MXF160206124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x421f9be4132bfa5291249c184595928981751af8c78fe6299abf95980344d3c3. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/MXF160200154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1329fdc6c6ed717e2992cab314735f4f586a12142b1a28687ced636e602291cc. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/MXF160001462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x984da7cd5e072fb411b746d1c5393278a35be72e0aa87b03cd4aa5765360438e. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/MXF160102339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc0017334cbeba7ba224be15e4517cd121e9d0dc40b1044495807804f5f7e7bf. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:00:17Z), 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/MXF160102349.
Peerless 80 Aniversario - 24 Inolvidables
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef8b8bfd87d5feacebc17e706b4136663d702a29ccbf73a2a5ce1736d99cd54. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/MXF160204874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0bea5a4a97147d1c829c340f9bc7528f9ae6262df64a33af0b8e2f981ef1f3. 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/MXF160206627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f45320f80e93dbacfc67428aa85194e91e9a1127c68eddd178a022de6306b0. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/MXF160206624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3424512eaf8df648dceaef6abb37c26e35c296648f043869686db005dfd81052. 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/MXF160102147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd6884c1a963133c80f8ed2162979267b68b79a3586ce5b7fd988b3619bf6a5. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/MXF160204875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf37a063c8b056b8a41dc228d8a03d7d7f9b910917e660ee126bac2cc24ea0ae6. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/MXF160204868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf0015e1929655abb350a27dbf569a34536c9b7d7f1eaefe270255cadd17aeaf. 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/MXF160102153.
Niñohombre un Trovador en Serenata, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4dbbffedfe4ecb80b3fe7196e19f8008b33a6c5e6aff3d7bae6fcd9de21b577. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/USDY41708586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa807de7d19d0061f567d3b7b9fe2b54d32d2e8e63bff701ddcaebfb5f3b3fc80. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/USDY41708587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977bd5cb6e6ba257ae60ff7e8819afe8a732cdfefeb49c23d963a00f76eab3b2. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/USDY41708589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8598a11068aaf4bfdf4566f1ea6b91b1f1ecf15571d69f1083c6c1898f67309c. Chain 2 (Bitcoin): anchored in block 957810 (2026-07-13T05:55:46Z), 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/USDY41708591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a5bd44b7b6c06a907e351b0ae626d98de056348fb9c3d5dcd9e6733ad39b56. 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/USDY41708598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d6ea883eddcfc609912bfd4c441be30f2d47288108526aa78fe73b8e832350. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:38:02Z), 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/QZ5AB2470599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x571f8427bdb55d7eea4e2c5653b33c3ed9fdc7c23d6da0ff4c995005fc53075b. 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/MXF160102783.