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 0x782dfad1cc97fa43cb72a405f7f7ffd89f817c9634244d0f2de9535531f54bf6. 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/59d1a610-431a-433d-bf4b-725fc8ecad1a.json and https://artists.proofprofile.net/proofs/artist/59d1a610-431a-433d-bf4b-725fc8ecad1a.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 0x8dddf191153b5d8a53f1229259eba6f3840b56c243c60b5999b01be2a52352d2. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/NZMQ01600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62a19afa2b38f3038fd75fbd294016a60bb271679e0f8a0f74b6d228c735aa5c. Chain 2 (Bitcoin): anchored in block 957676 (2026-07-12T08:20:25Z), 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/NZMQ01600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c18c603d0a364344765da2a41e1f48403a5e8ae92fa4b16f6834e142450e6f. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/NZMQ01600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c2a8fcd0dddec733686bfefb445f7c644fc18bf9e45b56cd62a3b5297a41c5. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/NZMQ01600019.
Hunt for the Wilderpeople (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dddf191153b5d8a53f1229259eba6f3840b56c243c60b5999b01be2a52352d2. 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/NZMQ01600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2df3311a294ec33846a311ca741bc55a42f9b176c3db87d952621a98304f276. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/NZMQ01600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62a19afa2b38f3038fd75fbd294016a60bb271679e0f8a0f74b6d228c735aa5c. 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/NZMQ01600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a92aa3fe9032087129c2631fb57fbcec8fd5f2bce91eb72d2020bdd3f30c347. 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/NZMQ01600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce77eb14eb0e6373f659a50ecfc3633bf5498d853325be3605f00853b66df9e3. 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/NZMQ01600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c18c603d0a364344765da2a41e1f48403a5e8ae92fa4b16f6834e142450e6f. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/NZMQ01600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f837112a0bb45d96a5414057f0cb6aa81c463c46e33e3bc40b9bbe240e94ad2. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NZMQ01600011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c2a8fcd0dddec733686bfefb445f7c644fc18bf9e45b56cd62a3b5297a41c5. 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/NZMQ01600019.
This Town: Original Motion Picture Soundtrack
This Town (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08eb63781fc2af9378a302ded60f7dec928e21be1f5c7a652ed6a2f23a8d8860. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:46:43Z), 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/NZRI12002633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38fb6752439edf19c8629623157c8dfd61e702ae42256087b0a6337156a2e3ad. 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/GBEPM2001485.
Saving Bikini Bottom: The Sandy Cheeks Movie (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe016134928e92e311d8aa4f7ec223817580dead213cdf2c2b18ccd18e74bc63c. 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/USN1R2425007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc0f5ecbf79279b02beb78e0962a4283071d43fb0d1016fe32366bc10994db78. 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/USN1R2425008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade6367b500fff9f2325da57575e0af7a120000f53f2b475a8edf14a62653bea. 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/USN1R2425009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb616a3f3d46a4d718f06c46319a6f846b9d2ff6289eb61a1883e413089663c. 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/USN1R2425010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b48a678b95b266163b0e71f11a0f352ede952af7b45608b08371d9f2349cc2. 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/USN1R2425011.