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 0x67734f73a7d300f6d85957978232eb23adcf42b2cd5b189a177a00f3f4aee699. Chain 2 (Bitcoin): anchored in block 953598 (2026-06-14T06:40:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d951b0b-0a02-48de-a475-11eabbc5314b.json and https://artists.proofprofile.net/proofs/artist/0d951b0b-0a02-48de-a475-11eabbc5314b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Respawned: Legacy (Ekwols Remix) / Drowning In Fire (Malux Remix)
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 0x4250c62b258ae44092e2b854344f16daab1cd55f2e20541b52bcf5dcd542844e. 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/GB8KE2400164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc165ed3de4fe922d34e6561227e5f3f9aceec5a0adcd9f911a13039e611223b. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GB8KE2400165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7518975e11b30d37b7cda8b16567497951f71289b230b0fe84ad3b05f75e3d3b. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/FRIDO2314310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7073d9eab9a3ebf19922e88eb2bb55ab6efbec8973532a87763e144a7ad9f2. 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/GB8KE2425762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2baea6248dbe18644af0fb92d08633f7d76a7cba03e221f9eb7761b5c84a14. 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/TCAIM2479551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0408e6b2d7573687ebd94a40e38a8746ae4742486b5b0cb470e47947fb86b2c0. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GB8KE2405895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97697abf5822ee7c2da9c35ac7cbd3fecf4596fb8ad9cb7e758e3986bfb7e327. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/GB8KE2315705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60de49568911fa6e35283dbc22e4596388f2ae5b35ae063728e274952ad2c5e1. 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/GB8KE2215968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364bed9cef5c2eed5d9981ab24cc06b5b58a1c0620333432627f83487d33aec9. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/GB8KE2215969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8d0fd343ae29281eaaac1765536052c0ced4c8ab4b06ed770f224a7f9e93b1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GB8KE2052931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6199e1de1c6dc3f8be13d1caa867d44b40e33e701f41fb62e6d0495779f6b2f. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/GB8KE2052932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d68b3f18cc3430eb68d2e02d9756669c727cfb25818dae93c621a4ec24e4e2. 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/QZS7J2455736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747f7b30ccd82b2d730c8ed08e8bf0d2f55c7dc7bbe615e00fdfa58f626d30cc. 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/GB8KE2417784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe6845c186e14424389987f003c3c2ebbd4c8a3a2f53037b890570d3998f42de. 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/GB8KE2424589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c3c7fab087eb82b686b356caef0b2cc18794b1b21c3ec2f8aa8720acea4d95. 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/GB8KE1957958.