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 0x009416853a1ec41763abb473d392723421bcc734041b2b5dc35b0b1bd04098d6. Chain 2 (Bitcoin): anchored in block 954174 (2026-06-18T03:01:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d460c7a-4302-4794-8f26-2fc49bbd5642.json and https://artists.proofprofile.net/proofs/artist/7d460c7a-4302-4794-8f26-2fc49bbd5642.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 0x2d62d3746673279848cc8fd9bb0eb3bee1db339b56d23c3292fac9250dd5be41. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZ5FN1724290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8636e70fac4acc49a054c452aa2d97343b551c921ca1ef20c041112bfbf083f. 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/QZ5FN1724298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4805b1dc260bc679d8b78ba8de3d9ad7251a2d44ffe578e9fa8048e6fe488fc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZ5FN1724301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f9194a2ddbcb43456b885e42ab7105f112d4e5c437523ccb5edb309e919ce6b. 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/USHMD1725302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff1ce0776f692719085670a07b305150ef6d46c55b63c3fe96c06078b890a70. 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/USHMD1725303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f9313f273a1f89525e6e8fba09045f8b34b185e17230921e69413e35695595. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USHMD1725301.
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 0xa0a60d809125efca673e151793dba9bc073079fdc6f39433fb99efe7941806df. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEZ651113947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78addb851ed6a50cb9f0bd5265e4b6c6e46b4879df6e3e37ebccbe1d14392798. 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/DEZ651113266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a4bd03d4e10859e17696aec2842ba0b6f2ef72411e6725cf7619e429d98ae87. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEZ651113268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce2601cd08e4a47c04a78d444df1b32cc4a1384dfb81104b7cc10862c83d349. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEZ651113273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99f291b1b19de9b86cb9528368846a798d51b689d247f23a7b28fa9125a5a44. 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/DEZ651113277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06794ce0c31a61095806f376b6ae9ae4d9e120f54a881f0c65098096bc5b60c5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMDA71385992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b06e16b834a56bcb198fd87c3122dcac5e7ba2290c257e92f746e3955c7a0fa. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QMDA71386003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9770e7828c1d429885b79f68b9677fc69dc9b703fa24bcf52bbaa42ea6c6a0c. 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/QMDA71385996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f46037f2b517dfbb44817dd389e0d91de1468353390faccd0b345bc77da727d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QMDA71385998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x432309705323a22302c39de101378184cf67fe82808781ad91db0e8ab8bf9c0a. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USA2P1186928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf708656e6f3d0ae3e8c779dae51bfd9dec0bb06e33deba0f54c23a57e109b4. 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/USA2P1186929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36df631412802cf9341b5fb4c3793632dc393d2ee5a7564c86ac608b978b9b71. 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/USA2P1186930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4070c83faa3a099509f93a890c7924c25eb08214101b4e51f1043689dd8fbf5d. 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/USA2P1186932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e4827d30472206bd17edd0a231293e879934299b3fb1564fd5fe9f91667093. 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/USA2P1186933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70684818798f6cf9f1bd2035f0893b9904641bd7f40b693da59d0453b96514a0. 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/USA2P1186934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca4052351ee46c018f9da453138a30b8f6e1cf8ff73459051b80df68a06b4d16. 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/USA2P1186935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a61fbe0bbf20a7c5ba4d7ec4d2d2c66a925e0c498fbdfff7cc291e3352e3bc. 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/USA2P1186936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a7143c258be4af289aa03084334970406a5d8196923b65e2d6672209039e76. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USQY50952167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb77a51330818f3bdf3cdf019137182a7b948dad1c8fc66af91c3863d0a38c793. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USQY50952168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c51cf6f25ba0e214b99a44dd775d5efca73b3efb871f01c38ebdc5724388ac7. 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/USQY50952169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48693355335975db91d87c39396d5c209e5060fbf3d6ff4cc1c39d6751277218. 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/USQY50952170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d1dd0f42f3f19915c6d39d43f1677125610d27aa9a1e465d07fa8a5cd387b9. 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/USQY50952173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b8906f2f8c1ec1b421ecc1127db478ada96425da120a41b5aea191789739111. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USQY50952174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6470e16d37b90f9e3849e657849b7bf4381ef671a9a6cc1ae58ea4a3cde90886. 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/QMDA71484938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeaaa9f7fc6aba3cad695288aeb127704e5f5b2c02f927963d8a4f25e66665f3. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/QMDA71484942.
And the World is Still Yawning (Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba2b88a4d2e5672b6fbe27e8925a1e8f75a9b8f802b74d6c66f22004770321c3. 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/TCACG1510751.