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 0x62fe66a0491a82dea04722ad9c58b6516ba7156a8302255f377deade76f6b0a2. Chain 2 (Bitcoin): anchored in block 953783 (2026-06-15T12:24:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d6f73042-0639-4baa-b8a3-25be62456ff7.json and https://artists.proofprofile.net/proofs/artist/d6f73042-0639-4baa-b8a3-25be62456ff7.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 0x0bfc3c6785ce77df5b94ff110aea2fc27beaddb3fdfbb98da8d017dd6621af7c. 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/BCA5S2500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8da6849930ea61894a5f264c0d5a8dd6dcc4d7a45bae7f8011c245f96e5c46d. 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/BCA5S2500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb78d419642fef881fa5b150f6e2f640f1c4065516c05d6060608e9f1d780c1. 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/BCA5S2500004.
Vida, Me Surpreenda! Com Os Melhores Presentes!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5de9941b5d012767eb6f79dda199fde75e8eca3ca3da71a5451ac46e8f0a14. 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/BCA5S2500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5baede0c197c827970b093f0eb49d445442d4ab83d84a579220aa09fdc32e72. 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/BCA5S2500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81500e3d3841748aa01574a158a9010bb070f4e6c9c8fe83ec170028718d51f4. 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/BCA5S2500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21068c0604ae3a49a3f7a19bf5ceba72c16cce5394c271351e7488bfe1cd3a5e. 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/BCA5S2500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac422ee81d002b7fd723673f90a9b81b924e9f26b85269ec541ace4c5d180295. 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/BCA5S2500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac422ee81d002b7fd723673f90a9b81b924e9f26b85269ec541ace4c5d180295. 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/BCA5S2500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea5a8d5627e5f2f671504c78599e51b55e2f9fc1db0e0d29949a3fd15025ade. 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/BCA5S2500019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767a1aff5306bb80ed74c584a9ed87cf5c2f32e4644fd27dc95288383133a409. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/BCA5S2500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x750fd1ce65d63a56dd1f283c4fd6de8d869a9cfe2a30b4a952a410993c0ebcbc. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:06:42Z), 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/BCA5S2500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x435c1622edec74e68fa539a063e58926dc97ce45425d113c3722d7f17d739584. 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/BCA5S2500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9537de699c8984836e45ef1f17e90d441bf9b4f18a8faec1b1e25ee7b80401b4. 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/BCA5S2500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40bc8bc818a276305efd957b20c267d12fcc5ae55a400d401961439c62e449b. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/BCA5S2500020.
Sagrado é para Todas — Cântico da Menopausa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd981d6fca04a0e623ba0dd9f7e2f0a1b156ea554c1299a34d2fa62d35fec5f45. 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/BCA5S2500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92181661886c35ac3f4122ca93418410e3e1ac95bb1871e34fb07ef3857e14b8. 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/BCA5S2500022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x575abe71efc54b226b15b81d56be25d0939b31f252ea1cd361389597daffdf26. 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/BCA5S2500024.