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 0x7a19603336c1028dba36ed7bb4e9e1cebb8e02cc1364e321a5c7d452f4b6002a. Chain 2 (Bitcoin): anchored in block 953765 (2026-06-15T08:55:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bc2d4fb5-9b24-406b-8506-d6309b180609.json and https://artists.proofprofile.net/proofs/artist/bc2d4fb5-9b24-406b-8506-d6309b180609.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lost Paradise - Hurry Up (Live & Direct)
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 0x6bed4e0bcfbbb57eef517bdc096d36dafb52de90da276caa7dd9acd6554802a0. 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/DEZC62116224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040ae34304f0a0457d6f6acf93d37532270de24a0f27cd2a2c9df32dd3882577. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/DEZC62333292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf76c6f4cd49069cbf5c2554b5975f54010e254fa477d2ce142d779c4c218213. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/DEZC62342026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb8d761bf188bf47a0770db216fae28e6f21398d9a3ef0d4207f991f31f2d09a. 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/DEZC62359767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040ae34304f0a0457d6f6acf93d37532270de24a0f27cd2a2c9df32dd3882577. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/DEZC62333292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf76c6f4cd49069cbf5c2554b5975f54010e254fa477d2ce142d779c4c218213. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/DEZC62342026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18e78abed8d0c931de7acc577f68c52ea6c837df196a15566e62ccf7b4a8636. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/DEZC62384946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21eb323cfd79b984372ba14bfc4ea9ede292c6835fba96a9303083f701f8fc1f. 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/DEZC62384947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c6a5030b5026202ce01701e24cece11debb825cd88a410180f7203dce3aa83d. Chain 2 (Bitcoin): anchored in block 960305 (2026-07-30T20:14:59Z), 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/DEZC62384948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19de732e574e74e22f563ae31f3dfac7e37ac8957c76ab14f0ecfa54f07dade1. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/DEZC62384949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff4d51ef6a96880e6ba7e6c7afceb4ed9d75a5c096ab9f685bcfe40467e5d67. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/DEZC62371457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024d5ac559f1fca5f0d9e2cdf6f5892a10591d0fe1cf521381f1b930f681de06. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEZC62437783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28ac8ced28dd6135bb827400e87675c654581028c136ccb4df477d6ac8b13803. 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/QZMEM2006611.