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 0x3f57184aa6a8f57d13253b66dc6127b9d2fb6f1e0d64321050f80b7a42d1cbf6. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/253703a3-aaf4-4d13-9382-c47d5d002c8a.json and https://artists.proofprofile.net/proofs/artist/253703a3-aaf4-4d13-9382-c47d5d002c8a.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 0x55158665c815b8a8001509929141563bb26a2f3c3c1ed2eee41936f69497591e. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/DEQ121750567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaeb0fceb437a11aab9c66c4d47f710690d650187d9ca4e5a5174393568a69f2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEDA71808003.
Avanti Avanti (feat. Celo & Abdi & Hanybal)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc59e90f2a970c3a054ef49aede57a72e72ead41dfb04976481c08edb0f1bcb0a. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/DEDA71808004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc18007edb8a793e78c0e601def28eaf75f649b78b77ff5fad313eb6f5aef913d. 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/DEDA71808005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1436e0ae8549e6a920a47e63dcfb742a6ecafee5d46d267a29ce3d50aeb31442. 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/DEQ121854304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1368128adf3f996680f232964d89fb25f92018d1202ebaf96bf0d9133bbab43. 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/DEDA71808001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a23d1e70635030d3e2d7df3aaf533c41c0505ff8af058d4544ab8685e26615. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/DEDA71808006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2190701fda203492a627442e808191e11813f5b79dfbe2a3ecebd2a62e600a51. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/DEDA71808008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa66e6766a78869635ef43f7fb50f6beda37b4713636d4c25cb3908aa1d31e70. 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/DEDA71808009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87934b4ed360d99a996a323b4c34211c228edf3d61c8d3a49b4a856aa0ba6090. 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/DEDA71808011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3b5f1a2fc402f695475add0c3b25be38faa4969e7e2e49eed20692e9cee87f. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/DEDA71808012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253f6f9167cee1e1ab734b2ed0a3bd4b8b29933e00ff82d31319828279462570. 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/DEDA71808013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84d8b3822614889a487d6844ba9003ee4e730bcad08fe3568920518073af0782. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:00:58Z), 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/DEDA71808015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee203a3eb536ee219dad430320ee19785f4c676c794000a01294971808f13d44. 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/DEDA72101003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9400eddfed55001bfbfe899ada6eea1087d8a6030c4349b30d5482a7837ea4f. 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/DEDA72101005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82727d90c94629c5c48363eea2fa6e0d68da27ad34cb84182818c09ce82acac0. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/DEDA72101009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6130bf75e1f6e17e4defd62e14a7a2b28b8bab654928287fc1fc8539e7dee12. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/DEDA72001031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0faf46d06669e70aa32a19780b03c11cd64839f2cc925efd4f677878b72ac4d1. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/CH7812549292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02316d191bcaccbf5fe0a232c744c9e9b34359b650ae678ca38ceb9fc5da602. 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/DEQ021903082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19663603f67af572dde35f399e9ddaea76c20cfabbf4a814a5f1f598eccf3303. 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/FR10S1910953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf685fca32cf756e9477c08f7fbc6378ad6cea93f3a68a8b465da47817c7f127c. 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/DEPI81904992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cec7d4bffc104f5d303923f3e90841787d28d75236675d7f55d19c06231e052. 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/DEUM72204972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf685fca32cf756e9477c08f7fbc6378ad6cea93f3a68a8b465da47817c7f127c. 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/DEPI81904992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08899f76e2fae27277a831d88494f6a0088721a59d932933a69f2daf004b3c52. 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/DEUM71906823.