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 0x23cc1cf899b67febfcb5fa23a123d0ffbf38dc6c31d1b70491d31c501293e79f. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8562a2a4-7467-408c-9906-1d898cb68c28.json and https://artists.proofprofile.net/proofs/artist/8562a2a4-7467-408c-9906-1d898cb68c28.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 0x1251106cb0ba8d55e41fd669842d546bf52c1e591a5b01b78b87f1564b23c39f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QM6DC2089463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbcd89e2561ff57d72ee006d987b18e401ddc7adc178bee86057d2a9986424ae. 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/QM6DC2089464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3721680712a8ddbda37d94005b9fde86bbe70fa4423bf95b24cc53ea7d9f57ef. 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/QM6DC2089465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41558b95592375b4f26b85e20189b3d1ed766e55b7bb7a3c7a8402a8120e0c7e. 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/QM6DC2089466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6ea6aa02d783df073a8f71c1da386acc8489e968dc480ea609b3a4896219e8. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QM6DC2089467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd384904e760750d230292a91ff6f47ca3cc38c06200d1c6f1678856f1a0f01. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:58:00Z), 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/QM6DC2089468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ac667a82691ad11aefc9d1f39cbce153bc42ff45c64e0909b501147158a616. 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/QM6DC2089469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed781ad3053f85e13f5740b41c53b5214c6b74ba1d1d9168c9d15552f7b883c6. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QM6DC2089470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1251106cb0ba8d55e41fd669842d546bf52c1e591a5b01b78b87f1564b23c39f. 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/QM6DC2089463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbcd89e2561ff57d72ee006d987b18e401ddc7adc178bee86057d2a9986424ae. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QM6DC2089464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3721680712a8ddbda37d94005b9fde86bbe70fa4423bf95b24cc53ea7d9f57ef. 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/QM6DC2089465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41558b95592375b4f26b85e20189b3d1ed766e55b7bb7a3c7a8402a8120e0c7e. 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/QM6DC2089466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6ea6aa02d783df073a8f71c1da386acc8489e968dc480ea609b3a4896219e8. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QM6DC2089467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd384904e760750d230292a91ff6f47ca3cc38c06200d1c6f1678856f1a0f01. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QM6DC2089468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ac667a82691ad11aefc9d1f39cbce153bc42ff45c64e0909b501147158a616. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QM6DC2089469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53717b5aec473297f76e655c4b9ae6d4d389f16a49a1af4eb57bb144c283c6f2. 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/QM6DC2096069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x780e7415346f3974001b2a763ff2db7287e42019d1e47de5c0d62db7e9a950a9. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:38:54Z), 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/TCAGA2209384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfcabed7d5b1a0293b638b8cdf70f21c36ad15141f75a039e4ab1b3308292d73. 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/TCAGA2251103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f3f40483e6db27ce8c60b1fce5c292bae2347a360a9f9823e3aac422fa61b3b. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:29:03Z), 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/TCAGA2251164.
Popurrí Lagunero: Loco / Por Lo Pronto / La Celosa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f4db2aa537a02913613b5b5a306013896142afa1ddd8dad2ca42001d9739b43. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZDQH2437304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3c4cd8e2f57d684833e8a31f36d5df3e92970629583334ba50ef334731babb. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:08:02Z), 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/QZDQH2437305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30491ca50ec19d52814f67966cbc51ab0e0540dac7dc5bba2e67dafa7294aab. 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/QZDQH2437310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe045aca9dcd022d23298675b6d187fd51fe3858bb92b54811f690940081babe1. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/TCAJY2597804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a6bd336f27c405b29d0c369089613d711f069c7350bf8857d0e54e0ed94add. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QT65Z2509386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6082dcf2e72bc6e5c4db2ecede0469339212514c2d761378fa0f8c7591d14e. 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/MX2832027170.