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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc8bc67a8130ecead0938da031af5e9218899ba77f6de52ece7bf58ac98e82f4. 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/ebf63c6f-b196-4029-a994-8b24d2e1f732.json and https://artists.proofprofile.net/proofs/artist/ebf63c6f-b196-4029-a994-8b24d2e1f732.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe354874436c6aaea0f3b2d6d06b7be00f4085bf3a6ccc27095f6f029c0d8105. 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/QZFZ61931991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b722ddb6043ad5d6a6e50301521878f9bd1ea5bd991e4b743d02ada613018f. 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/QZFZ61931992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0975fae1f6420944294665eabc98629468d0d64edf2b1554808fe0544be038b. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T03:25:16Z), 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/QZFZ61931993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70555087bc63dad1cd0991a263d886cc773a86f48f8de5b08d0d2e244a148502. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZFZ61931995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33aa63d460f7576d3e41f3f8ca438ffe09c421d32039645f3dcc35a256e026b7. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/QZFZ61931996.
That's Cool… In a Totally Negative and Destructive Way
That's Cool... In a Totally Negative and Destructive Way
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1992e663ced7b44d17671ad93a4598e03c80b7fb383724deb484056597129f. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:03:23Z), 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/QZFZ61947584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2db09e92e63412b5ddf823377492c502df277c2c0a9d16fb5f9d22b73dce689. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T02:17:57Z), 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/QZFZ61947589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f550e02463012124874c3a3bb3829c252a5f4527fdb2f3ec0f30433564f4c0. 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/QZFZ61930130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa826469b81f27ac1bea223ceafd9a5b9070d07f5ce39fba703506ca8d3374404. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:44:11Z), 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/QZFZ61930132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x699b075646984f9e877b35312e528149b0debf7cd14bafc2cb32f6b848062a48. 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/QZFZ61930134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f5ac54be906b8129db5e7c6b74c571a4bbea1d101582865afe620c67b26d0ae. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:02:03Z), 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/QZDA71867499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6fb03263f681a92148438de8cc81675ed6e646fe64e1479edbeafb6bc03621. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZDA82013286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f6005b880a005dd51a2f06a9d303d1b10a7ac7ab6d762bcbc7c58baae2230c. Chain 2 (Bitcoin): anchored in block 957714 (2026-07-12T14:35:57Z), 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/QZES52094483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5b20c741050af0ba22a289ce0dd8b4fa0d1222fcbbb8b0c7d0aad16755da2a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZES52094484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e8bad0ad912efa89f495b642835b08774c4b79ca914fae593f6708048865a2. 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/QZES52094485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41fe601c02859af04c4459eb1d7225506fa1ec0c36062cbf171a47de76cd34d8. Chain 2 (Bitcoin): anchored in block 957720 (2026-07-12T15:26:09Z), 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/QZES52094486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b79c6dfcc858fbfa2c3e561663455e62b865fcb8192f6cd57ea823ac5a00ad0. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QZES52094487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc885bfd0da961d40e38ac23749ee6c276ae3f9a4078ca6a66f5b58b506964471. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QZES52094489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883e148e740574a159a9c3bb3b58dc5c7405143d07aff8d2e9e5ee624702a1ed. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/QZES52094492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe216106d9946eaced5e8472860e7a418cc23a6fff5b7a7fdeaadeed96bb885d8. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:44:44Z), 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/QZNWS2011261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7fc0f73c11d069bee2733426e7fa6b0eb7565be0e5b66d1836f0aae6b2f027. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/QZES52197494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x083a17c292dc4d9daa97e6ced3ef2b5d2e7c7bc511502be577c95d9bcc5a25e4. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:37:42Z), 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/QZMEM2158821.
That's Cool... In a Totally Negative and Destructive Way (10 Year Remaster)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda873974a8c3ad239953ffa9a94d6e95aebd484b17b406658ce12a43d5539b7d. 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/QZHN92342113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44d8255464f2d50f7a2bfc97bd4b95033ee51d59c524b006cac34343dd6a7d66. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:26:32Z), 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/QZMEN2412752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb361a9998a66391aafcc284d18c94c08ed4ab758610a3d8d8ce104413c7bad4. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/QZMEN2416599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7794c0fe3a1e0665db00fd4649b8a05a260b5c6f400b888d60b99b3c20c716cd. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/QZMEN2416600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5a10ccfac079341118af0cc289daa642e2a383f9aeb0123125e2cc716b97c0. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZMEN2416601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f6fc5958e60f6afa49d0b6a690b22935f202c1739f820052d8f326520b7a72. 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/QZMEN2416602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5340c1801ac515ff4c7f6dc9dcd96aa7d3b2ee1d21af2d212dcd5711d7ed6809. 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/QZMEN2416603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbada23461dd411f0e78aa8ed46669be703e64c02cef0a0a5e5894b240cfa62b1. 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/QZMEN2416604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x598c7f9046760cdd63d0ec9e7aea3030e4a89b88fe5d641c83f14fce6090dd7f. Chain 2 (Bitcoin): anchored in block 958668 (2026-07-19T05:16:11Z), 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/QZMEN2416605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa483be598f40b93b4f4dffbccd63372ad347497d40aeb1262554375ffcd3e89. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZMEN2416606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af2567894490ab140d5de3be5a22e6fc41c76ca06786d4e1f2c19c906774bcb. 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/ESA011938420.