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 0x0aaa0fc96dd1a8931ac8fe5037c32606cc55967f58c70880b0aa510e1e0dba03. 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/d7292509-7f03-4546-94a9-cddc4fa5555a.json and https://artists.proofprofile.net/proofs/artist/d7292509-7f03-4546-94a9-cddc4fa5555a.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 0xa57a8f81bc6fdf5905e1d51a5b36e45f8183bf5b21bf6e407e40b20963b24571. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/FR59R1822469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ce8feb1da08842cb8f156d3b7070f2d9e7c95afdb454fae52f97405d6140d5. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:06:00Z), 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/FR6V82281999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa85053e46587431771189b0e5dc87d85cc6d6ecdd71f6b9968e7382dea02993. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/FR59R1821433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x218cbfba5cc11240911d6dc4462586f36195e2e75acbcf5f10a59b47cfd405ba. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/FR59R1824918.
Mi piace tanto la signora che sta accanto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5c5113b9943eab599581d09253cb5b3c7a2caa04b8217034bae64acac56b89. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/FR6V80362650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff7d2e2a074009569510f22b9c85bd4672cb8dab86175f52f64e939451e68bc. 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/FR6V80362652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb56f252f59fb0a3ec256544f5f8b9f4fce95f278089132ee80623c2e7839825. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:33:48Z), 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/FR6V80362655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f456706df067335a3ca1dd8aaf02b0516d71fe4a80ec29b4c44be2b140d8ad. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/FR6V82282308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb743814c663dfdc4f2ef8c3bf5b2f259f980b5a3fbdfa4b1b42f4e22019529. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:46:28Z), 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/FR59R1824920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b17b31d8f17f338b6d9739dbe9371417c88d1bed6e12c5162265491793e673. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/FR59R1824924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55388c9a131811331129479bf8aa7e804f51baee5924ea7099063ca138214afb. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T01:24:40Z), 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/FR6V80362681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a89f0c51f7e1f8bb11b8ab161e591deb0138959477405161d2c91f16809dfe. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:56:01Z), 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/FR59R1822468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd40fc5e174085d78abfa80d34185269f891ca79e4b62d577d296c82fc5e64771. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:17:45Z), 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/FR59R1822472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed70673e901dbe4c06ca8ca8d06e5e4959de011e19834ed874e9c717dce02d8. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/FR59R1822448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c2b1a118588ef44ccd520d578a8f655859c8d34e884b2540ae58e2c6151c63. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-20T00:26:16Z), 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/FR59R1822425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4522d460a3849f876f551fee329578da27bd069bc8dcbecfbba51966cdecd5c. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T03:01:22Z), 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/FR59R1822433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x391ff5a355cbd733e2c74580ca118815ace9433878531b3eb2fe7421e2f37590. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/FR6V80830103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d072a3ad15475705ebd2cca2cd76b0b0fbd43ac5e9668a8ee14c081ef4b1d0d. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/FR59R1824919.
Sicilia canta e sona (Folklore siciliano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a56b04f7985e9268b429e69e6d40016024e3a9cb06108771e7f9c29bb26096. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:28:01Z), 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/FR96X1926090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14ff173bf2ba9e0899e0b1f48c13819c138d898735ade60a5d1ebf24c1ddca1. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/ESA012446408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37590956c8b0b10a5a474323e5a184305612af2bc87509b15869c06da238a0c. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:59:41Z), 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/ESA012459286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x021bebf87baddabb6f1ea608ae1d86ed0d7df45ddc7b99b4a62199867c749fee. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:26:34Z), 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/ESA012557319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb571f60f353815728f66dd0f9e71865155d9db77ff84f5cce57311614a4105. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/ESA012595692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d593a0cdb312944f7b4defb918b2e1bf023a63c3fc710dc4fe5588813c0906. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ESA122514127.