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 0xf565dd7d5ee62a57f97d9c0115a68d7460f3a3fc5069a0170e268f379d35ebda. 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/f3b7e15f-8f9c-49e8-ab64-fa8d56f859e2.json and https://artists.proofprofile.net/proofs/artist/f3b7e15f-8f9c-49e8-ab64-fa8d56f859e2.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 0x2e80bc9820434e6eec74ed9290b48bead526de3be93bcfa5d4c9a7e2103d503f. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:31:26Z), 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/USPO10900227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcff0cf25faf0d00c8c505f2dfedcd0b4ef9285996c20f48212c27ecd29ca8730. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:08:58Z), 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/USPO10900230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20389bbd294f3e72c1a349564f8f12596f1d264614c1f16efd2ce566a20a43a. 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/USPO10900229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b06b2cdbcc69b8925f8420df86474f0edede7e452fce1d70276cd2373b2154. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:11:37Z), 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/USPO10900232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f4a488f702ee6ca34dc7b1d1b3ac27ceadf3816c56f64aeee30009fc7cedd64. 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/USA2P0827568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3192d798dfb5f10686d3370fa2dfc01af918aa2f398870b1983c6b2ef9327b86. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:08:19Z), 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/USPO10900215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x697e0dca46cd6267f0ff40083b1ca41e8515fd48b2fb7ddbc516a035aa2933e4. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:26:49Z), 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/USPO10900217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x236314cf0105daa74fdb6691601c787490885152f6f6621a29d4aee804dbe259. 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/USPO10900223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b55ed1fe9de1e522c9ace967c71f7821207b736a5a6b11f19ff312d9539a2e. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:28:08Z), 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/USUYG1020006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17fdaeec7505831307b54a7a0b6c59a18f9fc854f677afadc3ffd68b24c79a4. 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/USPO10200091.
Space Boogie: Smoke Oddessey (Digitally Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb628acdc304befa7bdd368a10d2ab72a7fcb77b62f04155598927a95e7eb394d. 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/USGZ21243253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb628acdc304befa7bdd368a10d2ab72a7fcb77b62f04155598927a95e7eb394d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T01:02:52Z), 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/USGZ21243253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf52488f0e4c67a3b879b2ca1f8eab91e1ba315378aa2126464bc778f3c840d17. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/TCAHK2336657.
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 0x3248471dd9bb1e989a5d3566a4de51db6dde6255f1b41819ce16c70edf917d1f. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/TCAEE1947033.