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 0x669520cde6041ed8141ba2a66f17d1391843fe6c6f8993e6ef9513838e4db22f. 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/a4aaf013-7318-413c-85c7-8562c701651b.json and https://artists.proofprofile.net/proofs/artist/a4aaf013-7318-413c-85c7-8562c701651b.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 0xd3ee07ea086dec28168d010cc37ad63aa67d33cff3eaa7227e513e00ca7d8f47. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/AUDJ01401050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114e15993070a3f53fec0c4aecc5d8077d6ab8a9a0c4914fa14932507ca571c5. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/AUTZK1700090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5ea62858f34f4451f20584466301d2fbcc0baa0b80cbf71aa6b8c9b5f4f850. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T02:44:28Z), 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/AUTZK1700094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe865a5eb24eca3c5f5861baed477fd35540531b5980b1baffeee9fe135021ab0. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/AUTZK1700095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac40a6fd47c52dcf6fc14e33dfe8fe2a55890236bb79644f2a1c2d738e09631. 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/GBKPL2034881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x214c8b4f61dd57c8981f3aecc3b68d08d1b85237db0fa5d443c3a5ab7dbeac10. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:52:09Z), 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/GBKPL2145728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799796179a656fbe3c1e274d6a13afd5f601a239633aa6337506c157b3ad4b5e. 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/GBKPL2145723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe13baf4b61e075b9f253963b0d99bcdc3fd792015392d2adad396a345314a754. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:10:03Z), 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/GBKPL2145722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2d5f1740e7969dfaf80465cbf0d9d072bec53da691f6e22e5fee071acd70de1. 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/QM4TX2271975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab6c482eb34aabc536f57793c955ad3542aa32ad15b6656535a1026c032765d. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:52:11Z), 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/QM4TX2271976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc77eb57accd08c90eb2ccb60b3380fc9685b0836b0af25e27ccba9fd8d8ebeb8. 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/QM4TX2271977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c0c271dd9016c3b30610e1829342d38c07549a5d673e99ac5918921bd74dcb. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QM4TX2271978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d00808a60b17fe7f7f5e9e36ef802d54341c2b53dcbce50f996d436bec3954. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:42:29Z), 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/QM4TX2271979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d23fd9df7cb59db2ab32267f8fcd4ea8e5277211e924e063cac753ac584c531. 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/QM4TX2271980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc32c7fa6424b8fe94c4a80b46fb8426666ecb7969c9c75cd572d3bce8e777a55. 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/QM4TX2271981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa360d61387f976a1eb5128df37d733c64c8d3ddceef1024174cf55a64152d9d8. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QM4TX2271983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33af787b7bbfea64cd2240aebc48d5b5bbda628f2393f6d25a09ab8e493c7a9. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QM4TX2271984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef0b384d4173ad3411d5b8733e733dc472f4bc251b02c4a57ce7b788a800e59. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QM4TX2271985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b4614ef97e5902000fb3606c2327e16c313ecf83087f5cca28a9ef9949a9f9. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/GBKPL2213746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7f7f1d1b332e8628ccc4f880af4ade513c74aed5d46bb6508354eeb9041e251. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/GBKPL2214156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719e336baf5d8ab12b980884fc84c040ebc4eb97b74f411eb45c43ec7ed7d780. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/GBKPL2214157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97179e2ab8de513beb77352d41028780f889061bbfd0592c39242cff2ab8bfa1. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GBKPL2214158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8657d2fc6cad619cf6b73d24b0b4a825fbc63804b12c69ec08a36435c857a788. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/GBKPL2214159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0b5c00e83e0b1b4394300b96eacdd9ba39f352b7e90c875c79f8a734911742. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QMDA62338626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d268120ddf24156f3f150bda28f2a2d9c15136b949db7ddd644336b408fa7c. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/QMDA72376359.
Loading Quicksilver With Pitchfork (Jono Ma Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6288408a3cd1673b1a5426f187527ace7501b4b854572c113c6ab8b195b1afb4. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/AU2ZC2400777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6405b852baa57af1e1aab326e4e7c1afeb99021156341e47eb3d36a9a86688a9. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:51:00Z), 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/AU2ZC2401068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8921447763fb304c2aa583437c9f4c21ad181231d19c7f0fb4fefa62fb5f9510. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBKPL1947462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x457b60441675f98534ec74b380b30bc42510fc8b3b705001a6a80c19908ecaba. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRU702100223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29bbc4ba5c50f959b5b490ba2b0f9cc2d241e517a3a9c05782d159a0a4aba5a. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/AUTZK1700002.
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