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 0x3dff02e926ae472a667f8ddadb4d0f705f4c3bc3232af56aea36d3dd20c20f82. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4c9fc6f0-9dcf-45fe-9ff2-09564a939659.json and https://artists.proofprofile.net/proofs/artist/4c9fc6f0-9dcf-45fe-9ff2-09564a939659.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 0xc4f1bd27decae7aae1e8a405bcfecf267cb67c309ff9b31a162471f013880e84. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BXV602100099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16f3f93a5ffc821182d7094dc51534b61ca32a11a45179037beccbbcb899d87e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BXV602100100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ec7836acaa025da41ad6bb5f084802d17501e321b8f0cbedce72d632d98a73. 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/BXV602100101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca08add467fb2514d1e2b6f8c3ae64cd4a2269790bde89783b4f5e4b8302a708. 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/BXV602100102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a002ca4d44b874306f0b4b4c689caad35b8e2b1b0741b1c91e1ec815e14b82. 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/BXV602100103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x736eb2b24028413e63413444f6743088c99a0e78088aa773e5b528c1aeb34097. 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/BXV602100104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4e0893725b9ec51f5c403d3e6cd36a515c27f22a85eee69985fea914901956. 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/BXV602100105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc7431c5578a4d086ef140c691cac2d94cfe9aad427859d546fdf37d406d713. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BXV602100106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9936a744d0bcf9a210f641d0b5a160d3dd2fd6723a627a58ef15a51436480a. 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/BXV602100107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc174764e4ccc2b230729a0624a46acb92cd9b53ec70b55ec2ae00689decee41c. 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/BXV602100108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45372a322bfeceba14ddef9424875289281c669fddd590e079caafb1578f56d9. 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/BC12P2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49c749033cfe4f10ea0d5b21c9bc2a4b6dbe4c19462b8e78673576b00634d16. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BC12P2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49c749033cfe4f10ea0d5b21c9bc2a4b6dbe4c19462b8e78673576b00634d16. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BC12P2100001.
Mesmo o Barato Sendo Loko, Segue Assim a Vida na Quebrada
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a9b9d3fe3804eafb546cf69dee6b2fbad7f04c5de32284022a1addd273d6dab. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BXSF72000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92615596266b44a78ff1b477fa5add33d3770c99d24adaff57707d8e9d476539. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZHZ32223350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36aa9bc611e2fc95c33447fa903b37b58309d4e5f27372286970b1f8a714067b. 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/BC12P2100016.