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 0x40b0941115252007b19ae069fc22c64ffcb70b5e42cd0de4cce040b589ffba96. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5d6cf787-8924-4c27-a83a-3ce627223119.json and https://artists.proofprofile.net/proofs/artist/5d6cf787-8924-4c27-a83a-3ce627223119.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 0xbe84cb17b3cbed069ba9e908f5f8edbffbe4e317a4fb4f3250259a3a792e9e97. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/BEB472100074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368638e4fd5f6c7b7f460fc784ab3e327918ca549078a0a842222462a806fcfa. 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/BEB472200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9df50d7fab6abadaa0cc1abce4fc915f5ae8a4a5a8332a6cb44eee99a21f5fe. 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/BEB472200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab36256d80865885166357c02ae375e23e9460856d88d2edc216b459414fa090. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/BEB472200038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x526085d5dd11239c1d5bc62fe9d0a5b62af5e5575167f1b388cce0d2696fe96a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BEB472300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cda241a0e2702a9849e5d9ea2b1fbe8f7563512be13ddecc8901f05b528098f. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/BEB472300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6bd116f853850683c964400753a9aca0c59e4d530695bc81f81d7213d528d88. 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/BEB472300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e54d370104a62d0fadf1e620bf80b845d300889c86cd5a8c6209f1793d8b2f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BEB472300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71c644b6b2abf2e17da3389447fde03e23ef620219c6ae6e9d607eb820856cd. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/BEB472300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233f11fa9c7f37ec9986f3ecfd349c7ce8478c0b2e179fc2415e6d3d427d8349. 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/QZWFE2404808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5bf16a8b0f2e567181c2e1ef58d57eeef33a3fa5774532e899db6067442073. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZWFE2404809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3c3ac4cb22d20d39ee44a5cd45d567ea57aabf02e7710809cf8d9ff3c17439. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZFYX2590438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282f453b88f4b157f0ba8c889ae822ec3f0721a9951230fa92890bafc09453a4. 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/QZDA62536695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f52651a7541985a803ca9f951d6761e60c6dad3ac1d99d2b15175fe91fc60e1. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZZ7K2462909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80acf7365877bf624906d588611431340390859df5bf7e338cd58da1f67bb1e1. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZDA72585628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12dc3c714ed7d508b736c05d162894adbfec8ec3ff0b2c390013364944eb004f. 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/QZDA72585629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x642095c1cecd4f14d10129746ee64b300a1c7b36d4669ace0be2bbc210791960. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZMEM2550825.
Your Spirit (From "Team Spirit: Next Gen")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3cdb1b86b9eec225d016a84efb81aebfe7af60b4bae6f9574e613c6699a38ff. 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/NLRD52133328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3cdb1b86b9eec225d016a84efb81aebfe7af60b4bae6f9574e613c6699a38ff. 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/NLRD52133328.