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 0xec29832b70ccdeb7ecd77c24c468fda3c77e852586368125f858ed95c06b295f. Chain 2 (Bitcoin): anchored in block 953812 (2026-06-15T17:06:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f7926b6d-471b-4491-9950-d407029401b0.json and https://artists.proofprofile.net/proofs/artist/f7926b6d-471b-4491-9950-d407029401b0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Saxomaníaco / Siboney / Para Vigo Me Voy
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 0x354a222dfd33e3f9946096819fdbdd69abce77b63ba8a472f2e6493bd679b69c. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/BRCID0200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd85ac2ca75f7d92b34c4ec3ca2522fc225c2fc23d48141dfa945334a5b4a9357. 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/BRCID8100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d68a481e2ecd7c6d051266c67dc4c928d459dd73da3d93652982104d8b138e6. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/BRCID0200004.
Danúbio Azul / Valsa do Imperador / Bodas de Prata / Fascination
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf978af790ee720372b258e68dd9ed50930a46f89ca8e8eb0b18d028390a6466f. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/BRCID0200005.
Samba de Verão / Garota de Ipanema / Wave
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41b1b2a1b35e0763a6b7b76c902531c6ca15c54d370be12c470d56978850f766. 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/BRCID0200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414eeec60aa8dc30aafc31d05cc1186a048c4c93502ed1ea9f05caedc529598a. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/BRCID0200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f5026c88a4ed57e1b19dd3da9057ef4325f419d28f8bb0ff8f7afe19d3220cd. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/BRCID0200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83fb16254a91be90b4f5d2776048a58df3db555b0afb0e6aa14fab2dfc8d750b. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/BRCID0200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e2aa84cc650ba1f2a737a72f558e5860b63022f98421e739b75407d44c3078. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:28:30Z), 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/BRCID8200077.
Love Letters / I Could Have Danced All Night (My Fair Lady)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade7ddc2aefa6f020cf0482fccb94e330987d49a55bc16c7a0909c437b2b1bce. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:05:34Z), 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/BRCID8200078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4255970b454b8b3edc149c336301c5ea66caf4752c59a9c19e9122390826978. 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/BRCID8200079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf0da62138d8374a744e6593b9366b81001b258cbe1edb4fe229e1e1720fa70. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/BRCID8200081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc5f88368b67d52be0b39577691ad029a0d3c706f8266ee46885d574ca90709. 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/BRCID8200082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd27816e4c6a66ad4c4b5317dbd1efc22dbf8f97a717e946a9d8d8cb69be5e3b8. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/BRCID8800071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed81006cfce8d9c3d5dbfccae6fb52abd8a45df5ff170137c6c950e271a594b. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/BRCID8800073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa62fe5483f476e05fa8b379d2cc356cc747d870171e0459702b168566f4f7e. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/BRCID8800074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ec1a1f9d8710e97e72f10f34b19ba12f867702bde6832008f787e11b43b74e. 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/BRCID8600056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16970f6baddb065cb80d4328bfcfd22f1ef9e4cf3e5c9b80721da57ad54230c4. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/BRCID8100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db863e23a93add98b141fb79046debc10a9615b788fc7381a549fde0da62832. 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/BRCID8100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db863e23a93add98b141fb79046debc10a9615b788fc7381a549fde0da62832. 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/BRCID8100013.
Detalhes / Não Se Esqueça de Mim / Mulher Pequena
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6854769f3ce4094aa229ddda802d2b2059d87445dd2b51d478aea81c3c465ff5. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/BRCID8000016.