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 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 0x92a82d1ef134808b24552897401468b5a80bd6e93a2366eda2dd7ee98661c4e3. 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/283851b9-1dcf-445d-a183-544156b95faf.json and https://artists.proofprofile.net/proofs/artist/283851b9-1dcf-445d-a183-544156b95faf.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 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 0x6ccbe645ad00254e28a986f63bd3021b2cab1ba762abbcc8aa75d5b79ca34ca2. 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/DEA812300194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495d53aea61dd26eb9aab2c0560ab5dfc93ea9587736662a0c3f098b03c01bb2. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/TCAHT2442504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66fe823136b737635afdbc33df204fc3778f3da2c74ccdf8ad09189500b9119. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/TCAHZ2429922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30172b12fde9949b2fc49b362e3542ab8a5b15a4da3529da24fac38ecd69f48. 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/TCAHX2445449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6870eb0e848987fbec4afb3205dc8f9068cbf5326ce11e68de8e6257cbeab808. 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/TCAIM2485846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3d1cc55b3e94ecf2d0287d1b60375f760e542b1f2ed5ece69ef465c20b9974. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/TCAIO2413769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b6a6aa07a7b5958539bb6fea30faff5fb50b599c0872161ad79e008f9048af. 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/TCAIO2478518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a636dfee25c55f6ce59316b545f14995024247f8ac3dfbd699ed43d4f63bdc. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/TCAIP2444423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76b4f4aaec9095a94e8f1b76cf0104870d51c9b2c01ff49a4f52f13df9c0c79. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZTB52490168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c6665ae59752906c2e9260acf99b246e02e3fac964d924ab5bf6fe3f532395. 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/TCAIS2404217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0707a92c38be161bbe0a44fae48dd779c6e05dcdaf9cb16a3a64cd4c290d07e7. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/UKZGC2500462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f7b869ea1454b6a07f49e3470457883b1cc3ea58d5f431d72ac32db76867f9. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/TCAJC2438380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x706cbb7a3be3ca407282580b3659000a9aa0e8b021bdfbe8d681d113fce928fd. 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/UKZGC2502505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be13dd3b03f9726fd998df7a2fa163c6e1985f7867719a989edc62b16f5d78f. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/UKZGC2503337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf4e92836c934735e0d1aa3ac3508a59741f72b5d4c5dfceba58c2d1d35aff5a. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/UKZGC2503740.
come closer / ride me like a harley (sped up)