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 0xf1e328d7fc0cf6e129fddc12ba670d2b6dae80ad2846645561d1fbcc39d5a5fb. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e02f9390-df41-445f-a0fb-8499a755a51d.json and https://artists.proofprofile.net/proofs/artist/e02f9390-df41-445f-a0fb-8499a755a51d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Closer To Heaven (Original Cast Recording)
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 0x0b78a1a52aa6edce28ff68ab286dea7361dbe299891db5a897f27e5fd17b65eb. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBBBM0102200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x133b35337b1bda1bd07180769c53b672fc04b1b72cc8dd230a70d7bfda6a83ba. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-17T00:10:47Z), 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/GBBBM0102201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe9b79d0883c4e01b5c30f48adf545b029e9672e662301bef1a4fe6a2dde81ab. 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/GBBBM0102202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f113268ad4b138533c6bcb27a7f6b9a9edbfab9f2dcfbd9b47ec5c2c5fcd83. 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/GBBBM0102203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6836a8b8035200654bd4c89549d7fac98034313957417cbdc31c5f254f88b52. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBBBM0102204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96c3946187ac34fc160809902bc85dcea45e2540c03c1e9d868cc937b587d51f. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-21T23:26:49Z), 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/GBBBM0102205.
It's Just My Little Tribute To Caligula, Darling!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf005f36f102ba3fa67a99f78b728a324f88f3e3d2ed889571b6cfa9d1372a99a. 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/GBBBM0102206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a426a57eb0e3c4e5ab8184d0fb9a98b83ea3b498cc3c02065746704d2428b5b. 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/GBBBM0102207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d29120bd7eb5824fe3dc405f2890a28f174b3c9c755554b1afe779f46e98558. 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/GBBBM0102208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5f5aa492e34e4661d6c9b5b9ab788d3c62f828167a0cd9b6f09d7506a736315. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBBBM0102212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fecd79c74b745cc92bca2fe4c95f320aa895a824d4fc51642096895305e89ff. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBBBM0102215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa31488b6f00cd0621f0a2932b92f5656de1e5ae8c4b8544698c08b57dd7f4918. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T01:15:39Z), 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/GBBBM0102216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a444b2d698939c87e7db9615db3449c0516e9a22b99f1e534c8b52cfddf877. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T17:22:44Z), 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/GBBBM0102211.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc17fe0b7a2a59d7f8d060ecce6a32bdb1a1288ff37006979073fc2cca92eb3. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GBBBM0102209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf9ffc779fd5316fe9fabda740506e65799360c06ef395e9507d3bc7493ee4ec. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/GBBBM0102210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0265f01ceaf0c0615489ad13a44adbf4dd059afab0d574c4e2f5835412633ce6. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/GBBBM0102213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56816dc14fe65e85dd554f6dc03a112c41ce63036e2de5dbeaf3fd0b4f0b657d. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/GBBBM0102214.