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 0x53668a5d659e281a62ac1b2f5159a22184c826159bd33bf4a21d02feef5e2c69. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/559f4818-8a24-48ff-b2bb-e411d2a89662.json and https://artists.proofprofile.net/proofs/artist/559f4818-8a24-48ff-b2bb-e411d2a89662.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ROLA HOJA (DG x BOB V x VIRTUAL_AF) Prod By PINNOCIO
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 0xcc9aad1fa3a869fef5d0546541ef3536f44e750fa0800b19ed5ffc6c35b37d5c. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZFYZ2237805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb38244997f929de1d995534f198dbf599547477b1578b45318ae92211408654. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZDA72285101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefdcb7ea4ea2df6d4ea85ce17664565675cf250203fd96f241eba2eafaab20e7. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZK6Q2244660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6629e48b6a4d45985e904b9a90c212d5e07970578f54068d467e91456fbb4d79. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZK6Q2225878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd93ba4e53c418fff144f4fc2f4c85df3bd1d633ce70f6d6b4d3e74ac526b4aa. 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/QZK6Q2224209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1dcaf4d45652df64394b30d4716029f7742b05cd4ffb60f416b0ec1afd1a4d1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZK6P2210620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1498d8aab854cb07fc74f04332c776044adb1989c072d9bc818335ed6cf71a86. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:09:44Z), 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/INC622300270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa145504ab725019de145e616d928c6acb5dda5c5533a450c37770a09edc8867f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FRX762303082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa200737a67dee6fcd23cef75b5a326643615f4045780cc11526b86e9040c4704. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:39:36Z), 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/QZHN52275874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b731fd3e0e42a5de6641fab32c494c79d2df40f55d3a634454cc9910c650678. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZK6Q2225889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c38cf52d338fd1774812d94a52f4e628f6efb9c452e7551de7b9002f557a9c. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/QZK6P2209237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab2d6d800f69787456e10cab7679fad3d5eb9bd3f64aa6fccc5233622b24287. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/IEWGI2309840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f5b796a63de956a09036c4de7123839ddafe988a8d83ba33d8e226427401ff. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/INUM72301588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b0dc13628b985ca05b91707aff5c175f156edd6a516716d3c236ee3ee3a53a. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/INT132301126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b5f41416d06affe7f0fb45a8b969f41e73d45249e334fb4085e42c34cd08843. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/INUM72501010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf61ed77537cbfcd98fee729e214b0a27a48b5688c530739f17d74ee36fa09fc6. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/INUM72501011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2076f54ecd600c1eb17fa168257dbd38703ce4ac10b22eda58a9f706afb1135f. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/INUM72501012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39b8bbf318b30b04ddbc5f82b0b8327b9be58e6ece2df8ec2d9a1fdb36dfd46b. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:04:15Z), 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/INUM72501014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef0845180aef2866667b3f6c50bd37456aee6c391ad0f2463c13c0aeee7f230. 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/QZFYY2237677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73092e50d43e4579e1aa79ad13409047ab92f05ee732260252a0750f1d35a360. 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/INUM72303052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12493745631a662ccd69204a9dca326ddcd551859d27647d9577ba7084eb1cf9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/INUM72400087.