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 0x20935040e05cad6241fe39fefbdaadfae10bd997e166d421ed0ac9291c295a2f. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ccf55289-d25d-4f37-a01d-59249c391659.json and https://artists.proofprofile.net/proofs/artist/ccf55289-d25d-4f37-a01d-59249c391659.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 0xbcb37aadc272caea07d63367e807b83f177b1b8509d37f5f5f5d51a2b5b88a8e. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:41:09Z), 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/AUDCB1600930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x406f36ea03f22448a5e9eba3db6e101bec66c4a12e2594730a92fa4e68c819de. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/AUDCB1600933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7459d536bfedddf4288fee4853a7381f3c8e79415386b5c58429be49b50b7f0. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:18:08Z), 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/AUDCB1600932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x406f36ea03f22448a5e9eba3db6e101bec66c4a12e2594730a92fa4e68c819de. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/AUDCB1600933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67909e4ad1f5abd00f564905751c1a3842e4403789f83582be850d1385e1b5ba. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:24:31Z), 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/AUDCB1600978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd60b65bb9ad8f53e1b5ae362ae6c3a5472f88c05e6dcd00c6fb25b0fbf00e7c8. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/AUDCB1701048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd60b65bb9ad8f53e1b5ae362ae6c3a5472f88c05e6dcd00c6fb25b0fbf00e7c8. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/AUDCB1701048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x684cc319a3ecbf81e418931ef312a328161a0fa7511a06f464764cc86794bb02. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USQX91901287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91cc6cca1dd61ba938746db3e6e7a2f9f536d1bdf1a61d2cfeaefd5b75a0bf11. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/AUUM71801080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9637edc751fda108cef61c3c2f0988806a5c9d436ecbecf7a07b5c8ab77e7b0. 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/QMUY41800238.
Lost (feat. Chelsea Jade) [Enschway Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015a2a345b2b6f4d19e07f7c7c50a6457ab6c8bace8ee4b5955ae595750ab1d0. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/USQE91500701.
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