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 0x6e2b4133dd86685bee46f39af4fac980230fc4b8b94e3ae9b5d0a56fc53177e0. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dadad1ec-6161-41e8-9aaa-6a64480ac710.json and https://artists.proofprofile.net/proofs/artist/dadad1ec-6161-41e8-9aaa-6a64480ac710.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
sgniw ym htiw ylF (Fly with my wings) - Intro
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 0xc927deefc0ae75a67d2dbfee6b043854f2d78d015e3ffb5ae65fee82b0a3a748. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/KRMIM2118978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x712121e824957d66466e1a27fd3af3135d3cf865370ac38b152e2c08566760ab. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/KRMIM2118979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c0b263d0096bfe7ced19f3bd9e5f525224fd46d7baa082d7ef8d05eb08c1086. 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/KRMIM2118980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e99d18c3ff79c90b43ab1198a3ff904cc11635f29d32bf0bf93b88514873ca7. 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/KRMIM2118981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe03f0ae884c725a42ec222ade3a5b663c916fbbf5b8ebb6f86c023a286f1c2f. 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/KRMIM2118982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11daeba01738607666e214fd79c5a8774fb564345d8caac9b9dc523dc35ba608. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/KRMIM2118984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e061ab5baf06af82f50bf877798150dfefee469d22b2d19256c421dd13fdfe. 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/KRMIM2118985.
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 0x4637f1afe1f6a2f53cafeb22410a0eaa1b6ad5873368dbd30e4daf82761bc95e. 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/KRB472301838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce49c749a6c08aadbf2be66e6a5b55da40ad74c649cf6d7016d1e2df597c62c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/KRB472301839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf81de75693a864b9f3c781954d8297014405111856a2bbf5040f93cd3b0ab36. 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/KRB472301840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x938a5036116dceda1146a46d29a2f839b05891d126574426b7fadaf37f4a0078. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/KRB472301841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf91322049edfe268267391b7418112a30872b0fe75f1a967d9682fb916d76318. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/KRB472300234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc540be4e07b3b6e4af74d40912d45d9bce72ededa5219f11afc69593f486b3. 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/KRB472300235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5540a5982c35920d6e79fef3066972bb36cf268cd5b301641586ade04317edbd. 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/KRB472300236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb783adfa873f96c2da6cf0e4a79d1655e7e03dcca8f0028d3b11c4e6411c8c46. 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/KRB472300237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f36cb09cefa0dd794944300035dec5a0cac795064fbca8efcf3e66e9aff1d1. 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/KRB472300238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa077f6084fd55b63546092a4f235feaa49b1816a2c53b3d56a414e0ffa1bde76. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/KRB472300239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1bc189170afd73afdce94d06235d7a6084cd112e29197141feedb862f2099d. 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/KRB472200879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaccf6c30d9f36a96085c589b3bfd892efb2765492c42343847884adcde437a26. 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/KRB472200880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd032c44f754b6974088caf5fc06575e8d84142eaf58a92b56bba3d2f67f4dd9e. 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/KRB472200881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2711cf9bd3e5851ea772a37ee2720babd54122b73d66422daedbb94f6510ee35. 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/KRB472200882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860fe7c3aaf0783cc2c63cd4581453b3c47bb55746cf94395b5266a5da38289e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/KRB472200883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c1cc268745b2667bc20149802095793d4145f01c2f78f95be9d2ed3dfeaeb4b. 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/KRB472200884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2556625e4260a34ee950ab1b9b3bb51b69c3dca01350ee3db713e31df0ff6baa. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/KRB472200885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f09e98bb6fef5161bb2ed1342649b23313d61b2b3b4030b6708c09086cf7fdc. 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/KRB472102372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f3915e1b2670ec63a7c890c13fe5ee73df4680a504b4299fc526c9aef8e3a0. 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/KRB472102373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ee18da2738163cac57a44f26f37eef25b23a7e395cbb9282c335c0ce25059b. 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/KRB472101870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e62ff0b8ec062a49e1e23b4123f34672800cf8be1f6c9ec5c6c05bff153969. 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/KRB472101871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d85de2be0efdcd6095f9f73dba91260c07ac392d0d73d65fa5f1b6009c8e4e. 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/KRB472101872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a9688cc9a134b0c069a893c46d5888566ce642f9e1ca48da102081c360cab7a. 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/KRB472101873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ea5eb7e15a517a8543b26b06888eb183823b53ae4097b3312ffdeeed3f29eb. 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/KRB472101874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d7e757a2be865ce07d5dc4c3e79b3fe82da9e77d59b3ab2b623050ba128836d. 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/KRB472101875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x198c9f0122a1603e9828c479ffd60d6a544d7bc01bc4a0361dae75d9b0ddabe4. 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/KRB472101876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f60905fc8bfe8ab1ee0fbbc9c3d0b8f046fa7097d4152df63df678c493ed4f. 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/KRB472101877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e3bb7e0675caaae196f7ff7897624b939d7a05640914b063b2088d999dcc1f. 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/KRB472101878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603fc4870ae7e438f6e000cb8e535be019d2e8fdaeb7982c7f6d44242c1af08b. 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/KRMIM2101661.