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 0x17a434c34b928c283ca2c42c9aadf423c544891b259cf81c937e0b99cd840739. 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/01ae6f35-30ef-45f4-8e1d-febf8e07113a.json and https://artists.proofprofile.net/proofs/artist/01ae6f35-30ef-45f4-8e1d-febf8e07113a.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 0xdad1d30886bf7253032b1401d35baed248f3d136df6b97afe6e7e6b6a1823bbd. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/BCLC12100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1e171aade7b3157d0d4e1d3d77be5befcd01c9d71aaea47be0670cce7c02df. 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/BCLC12100006.
Pout Pourri: Horizonte Azul / Acorrentado Em Você
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d4efb5c24c39a56fd227cd919ecd41c090efe0506a551b25e74bb132be6773. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/BCLC12100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ad30f4f49ff124032d02fe8cd935bfa4236e0a1188ee2069fb6ff9ff32610f. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:49:15Z), 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/BCLC12100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d45c1d184c8523b2a205a01b5093c6f8f79135fd68abaffbad29c4a56f0717. 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/BCLC12100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f74e3253c9b0e6fbbc5673f5afa5d60ad584e2e916f81e26f7266603c74d67. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/BCLC12100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f1e03a3854d14c6687e87a3502f70dc48591b0627469889c1851dbf88fb217. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/BCLC12100011.
Pout Pourri: Se eu Não Puder Te Esquecer / De Cara Cheia / Dinheiro Pra Que Dinheiro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99920e5f1ee68ea1da5208f935311b497a62729bca4958a5652abbc7b7007015. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:53:47Z), 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/BCLC12100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ba8c47ac21bdeef3e4836730915e99fdd28374516eac45fc64154f8fab9127. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BCLC12100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1772c47240e2749277efbd7710b68c195cba57a7b518bda86114c46ec93e6593. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/BCLC22000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe280cabcaf2957e3340e993b7ed84053780c581ec6d1d285af74f12699258e3b. 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/BCLC22000003.