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 0xcf4ce3bdc640e8e25aa225e24b9a9ec8bcb7742d9af6c31093e019207c881590. 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/b6fc1e12-293f-40ab-9812-b9d3f66b6207.json and https://artists.proofprofile.net/proofs/artist/b6fc1e12-293f-40ab-9812-b9d3f66b6207.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 0xb7f265a450b9b4f03e6ff9407314bb00357b8998d3a36b3953766a31317923ac. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:04:17Z), 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/TCADD1759473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42d6037bb539aed567326f3fcd79bd9b12427830c5cb1c110ec989f67a9a06d. 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/FR96X1859836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9448e20a4c79da3426ab90a6319944c232ea933c74c6165bb4277c4085cbc47. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:08:00Z), 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/FR96X1859837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99c83faaa49bf82d9ddc19820e91f05ff34fb448a082b2eff33599f23e52983b. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/FR96X1859840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a2b86de5cbb4f44ff686f4d18860e1028e0813b3e4c906232bb1610f32774f. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FR96X1859841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7140763e291db00d9695a312bf9141d0ff6a6d79976983aecfa6637ed1e1c989. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/FR10S1981265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1f8ef40b5cbe5dddded8f94370a879034a10596f8603a7f9dc2c956fb16a07. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:29:19Z), 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/GBEWA1905221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b41780957aef66a77a727279ae49fa03ede6555773a19b838691e0acf91912. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:36:43Z), 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/GBEWA1905222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8540ec8e1b6704b83ed9391fa7fe22d291c101da233d431dcfcc6d027a0fa4. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/GBEWA1905881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x447cf0f41818e54328bfb01f565ed9219114abec8838eb607168bf59350efe7a. 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/US83Z2026940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67653a7873c0bbf00f79bd3e9ef6b09797c950326381875671769282bbb2ed9. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:28:26Z), 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/GBEWA2207100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64bdfe64e724de54a9c36b3dc95ee4ade3425b602d53bc7bf3b09324043a75c1. 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/GBEWA2206633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc02d51c32c81652a716685220a46a31372ea6326342255092b4419d99b85f34e. 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/NLF711905021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92bf11c1dc9a69840a108d3bdfc5d520de3f7d74cf693c296448e4ea90d2378d. 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/FR59R1894837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc790dd94239e25f39d912bd5e87f32d76c0afbd019b0aa6716dfeb459a3614d2. 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/DEBE71900584.
Colorscapes Volume Four - Mixed by PRAANA, Matt Fax and Estiva
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafec7821656b2a21707430fcf5a4627a791b8f031c944e8c499d70d4a6242a98. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GBKQU2282620.
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