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 0x1060013978384e75676a72c5351889637f66de569ae122554217f6a887d1759c. 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/12cc8791-9886-4043-8e43-c1afd0d9ea6e.json and https://artists.proofprofile.net/proofs/artist/12cc8791-9886-4043-8e43-c1afd0d9ea6e.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 0x608352e64b802f15542e22f68ae99cf23b53e7300f8ad967fa5976b53f37337d. 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/FR2X42148358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e01490c43b1dca94bb043eb1c2e368b0e96fa17bdcac2bf3ba42ef656057f36. 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/QZS652193398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb31219a4bdc2bc9847810478695c1b6b0574599579a2a2294a0ad3aeda84bfa. 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/QZS632118404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e954be56907e754863701e377314e99a3cd3938de2f58f6a44dba5ef3567562. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QM6N22257815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x521500fa9c16b4e0f7b582f1952777a7bd694b0cb2896b321fff26c45851b26d. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/QMDA62223826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5cb8ec2422a5574d6bfcbce5aecc46064a443066cbba4751e9773c0aaf40c5c. 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/DEMA61905860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ce555c9338e45d0b32a6a7ad263e1255ccf09ecbf79b27046cabc9492d13c6. 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/NLT2H2200918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ba8995a7cafb7cba38c1e748c80f2afd431457720f41eab6961300fb48a0a0. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/GX8LE2301252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5b73cb5c9e67a65941321fdf391631b0de02ec92a0fc077b4f0920562fcb2f. 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/TCAGY2300068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x879bbaa83466757b8f899889f887c0e94b245a131ed51258b7144d6566369211. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GX8LE2331927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98114c40f6491df12d3cb84ef3f1ab450005ce0111cc929ac1230d4a545a7216. 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/GX3HH2352863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6de15092fd23fd93f15b7280d0914c565db9d004ab51fc8811d81e0809fc22. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:45:15Z), 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/NLT2H2301238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc07c905c024a085c231bb5c579990039c1530285c07abe3ec11d2fbd90c6fef1. 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/QZWDD2445556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8147eaccd9f3ade240ff7904921ea5d8a4725074871b60f7b6d56254499a88c6. 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/NLT2H2400729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ffe95a91ce9d96d53cafd42d59661a1073bc33c245c02236a6c7d02573cb3d2. 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/GXF972411336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d193456b5118f8fb884249446494973dfd3c4eafaa85db544c1b63fa8be25c7. 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/NLT2H2300579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf502621a0e50078902e72b294e1ee65473d71e3c1fcb3b62ba03171f1be2cca. 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/GX8LD2374272.
Wake Me Up (slowed + reverb) [feat. Boostereo, Audino & Karisa Hope]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587c10dc243f46008143db4023bc924c0259ccb5c40384398c6cb2504c156d6e. 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/QM42K2217250.
Killing Me Softly (slowed + reverb) [feat. Boostereo & The Trendy]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x864f64dfc209b1fe7a89ffbfb5463fa814bb1191265edfd0d45d636d8a13266c. 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/QZS662248718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915e8fd611b0e1e9483810a640a8cde9010e0611ff627a5c6ab194eb0a65e42e. 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/QZS662130348.
Dub-I-Dub (slowed + reverb) [feat. The Trendy & Boostereo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd3056ca5958317cb9b7095c9384501103975f477fb76bd37dc2fd23bb8ea60. 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/QZMHK2293009.
Pop Corn (slowed + reverb) [feat. Boostereo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5025d1b775a927e6170608709048064bd619eb7cc0bc7e963710229a410b07bf. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZS632238535.
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