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 0xed4efcefe0c746db3e6c82ae41d782e21605135ff1a90ba36100d7db38986a78. 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/8b9f300b-8297-4ac7-ac10-f7b1263baaaf.json and https://artists.proofprofile.net/proofs/artist/8b9f300b-8297-4ac7-ac10-f7b1263baaaf.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 0xb51f3236b7fd6596661f9253cc8bf10e62a8e6088478f221f8bed15f6ba7d2a1. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QMFME2118143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed22324ce7789c6c32cf26bcd0bee7cde08632156363bf2126eeeee8461a2f0. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QMFME2118144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefcfda2d4ac010bafb1bcd218fe976ae0d87d1830a694e10d70b68a7fd06eb04. 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/QMFME2118145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183fc5a712e289630fd806de6025c0316fbcf343085bcea0e5fb1c3a2d9b3829. 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/QMFME2118148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58b829845baa6bc14ea4d9692b34a8906e1bfb07efcdd7dae8b744bb94215f9. 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/QMFME2118149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba2c63fed56d6b989216c0378952dc0d697e265afce6b7a87097d2fbdaf71db. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QMFME2118150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f4e8de24ef73c5b80062a34bb88e5854889019914278260aa1f9dd8e67b61e. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/QMFME2118151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd40d4578c6a1b738bf3c9f76bc268f085d4402f204e2db66b8e35bc2d4cda169. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QM6N21863647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e7506810417ddc600b526e989acf53565622c0d5cd2c938cf1441cb5ef95573. 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/QM6N21863648.
All Around (Satanic Drugs from Outer Space)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2481ea6b5f5d5fe2bea3c6c047c18b7efd9e74fd32e224e6ea824ab190e952f. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:10:42Z), 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/QM6N21862693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6764cc0d86c80ba6ceae3b0b3c5a7dd1d9e186bed8bfac673c0d47ff6986e56. 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/QM6N21862695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x505c0ac013291a927a846b611522ed85abde30dfdd947dded27c6548c8def81f. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:30:31Z), 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/QM6N21862697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e324f03bfbdbe67c07ac648347f7f9a9d92884be0916e78a02ace21bf6a8617. 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/QM6N21862698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc664ced568f7845ce9a809ca5f7c2e011f817539b6f6ff6c44890d18901ba528. 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/QM6N21862700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26dc77c7aca22013bb462c7eafe509f1711530b4b60222c25c204c574cbbec05. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/QM4TW2152246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1317055e5aaa24e2b3c2bcc7661d52c5ccb7c6d1cbe7029cb20a55692bd3e41a. 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/QM4TW2152247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03a8b1743c94f98fc236f889d029139648ee66d57039c42fb6b73d900a949e6. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QM4TW2152248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f668f085c43652e175ffedef64fb75e1a342723ff350cd679691458481e93f5. 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/QM4TW2152249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceda17a05143f557d6cd80b537f14929020492169e90aca0a99a3c611b5d64b1. 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/QM4TW2152252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc125fecf691065c7ccb1de8705e74dd15e9d5cc6d935622faeed4b8a36f21cd4. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QM4TW2119772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6a767885bace4b0dbba633332550c32e0803a8e3c59308125c770925414e4b. 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/QM4TW2119773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839f7dbcaa6f676b3414ee24be908e101e84d8b619e171177b8ea67e1955620f. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/QM4TW2119774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb808c978d3a97196ef2e222873aa4d0baf549d566e39c0be0c7015154e3fa1d. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:10:55Z), 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/QM4TW2119775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae0f64483de246ef11626c3b424a59a0e7f2759ce6cb6a57365d21a42791647a. 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/QM4TW2119776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb6bf1da4305c1eef22a3f17b7665dd98b2537dbfbd26e0f3409c5e36182464. 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/QM4TW2042626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b93abc8ca08f2519a52e8ebf8f878ae80161893069cd776aebb67cbe5ce0d54. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:27:56Z), 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/QM4TW2042627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe13762a5aa2d1e46d604006549ba0e34dacbf9b14aa4e315e716e38447ed5c9a. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T09:43:35Z), 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/QM4TW2042630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10057a19ecbbb6ebfae5fbc6c17429fb8b464cd2db134e487b7adebb41870dfd. 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/QM4TW2042633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83206f65bd7cf2e88a2aeba10e5539ab696a4667fdf92694fa20d2de1e096706. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:05:06Z), 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/QM4TW2042634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc5f50cc81a099ae61df441583766801f226e23290817c4531eb444bb1e650c. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QM6N21958843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb8e8919f7c92caaddf399b63698c90d526ce99c7423c3ceed04444ce3f08f5. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/QM6N21958847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd73af4815e28eeddff498c376985f6dd6a31ee1676ae31a6b993b83451a30d9. 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/QMFME2420604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1157270a4516e615a63d29bdecde8730c8c2f2e23f287215bc609af13e61af6a. 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/QMFME2420605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b1a9534a2a9a23a716d5ec8caaba9637eac896d020164210135b735b4a64edb. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QMFME2420606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb15b2d3c16f18c511ceb221054662679f615fc55a5aa628ee37029274b7b197. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), 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/QMFME2420607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb582827ed9a67a9c2e43c307ecfddf6604ca9ddd95b9ed6a58edfae74d1ebcef. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/QMFME2420608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x402286cfae93139fe193e1761c3dc5df07231333f4d180579f30237d0dc98987. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T03:07:35Z), 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/QMFME2420609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9180d0d9215b4410955424f7c75e0cc7b6d6a2ffd455038423d6b3cd1680cb7. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QMFME2420610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5f68de8dd64208e333ce0f0bde2aa7a2c78cdfffa49fcb3ae71399006f6a91. 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/QMFME2420611.