1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x6ec8faa7284d86e4493b03ec4f8ca010dc35927e87103c7ab0bfc54296c2df8b. 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/9b5d8247-8afe-4fec-9386-c900ebb61568.json and https://artists.proofprofile.net/proofs/artist/9b5d8247-8afe-4fec-9386-c900ebb61568.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 → block OTSBitcoinBlock must exist at that height 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 0xf519cfc30796e7d7f4c2334cf9cc0d513fe30adc429192744b7de275c7a2781a. 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/IDA171510055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4b84c8122de03f152cc49f6117677e44b722cdcc5e2fdde504c04cafa52d51d. 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/IDA141502973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd6b06ee31e99b8619dbd6ba47be0e0e7f2a8b8d451d5408076e680296dbb411. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/IDA141502974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x147da5d9ad9315255f88e073686721d01eb392485deec89c7d52de42e4ba0e18. 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/IDA171616049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211479f5585b7aaa5d4f822f6b7479d03b59192419c8ad7dd192a163c810d66b. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/IDA171916020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06ca5bbf362ae343f42d59149efc7b0811fe330e372ae2023ceb3e6af2a7e6e. 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/FRX762091169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1207d11d7c086e5ceadd24d229467fa234553cb0ff7d39562e025cbda8935a76. Chain 2 (Bitcoin): anchored in block 957848 (2026-07-13T10:31:25Z), 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/DGA062063161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3bfb2cf80e695af5fe48b85377b6b0ef250d75cb050893201f35a586b8bb69. 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/FR59R2113836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bcf487fedba3152cede535fedbab9fa02203cd18c115540fbedf99949c26ea3. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/FRX452106628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5948c2074122cb24144a7920d497d46283956ab982e3f18634473642f79d8796. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:39:06Z), 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/IDA142305370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0634b945084e30ba7ce72b2c1df40edd3d96b5b4141f6b653f7bcdb7ea6fc435. 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/IDA142306898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa25c662537d9ce549b94245b7928499831bcfd4ed21cca3304afd24571ca673. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T01:34:31Z), 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/IDA142306901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf681d2c448faa0bc0ef0ccefd4da67ed9ea0832ca9ef6e6316861cddfbf4445b. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:14:29Z), 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/IDA142306903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf065fb9eedb603473578fb61ded8114fc706facd3868c6fce0c227bc9f3e9feb. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/IDA142306904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f2b7f98977b00d1aa22e003cd7275d087d20fa0a9667bf3256956f908cd0399. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/IDA142306906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0aa5a09234e0849079051a616acdfb49b9796f14628b89e689f120d0ab17510. 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/IDA142306977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeccf45b32f9c4567ff149039fe2cff2e5f162a0ba8351710d69f173fb1e1fa1. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/IDA142306978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ff8f46bdf8b0f46bc296963596170d3c2fa2ab7409f45419bb421a594a2977. 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/IDA142306979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ea009730ea8271b4c3357d0b62b5f4c3dc4dbffe8345d2a9d78a21d4d10f4e3. 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/IDA142306982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c000c6612d87becaa73dc0392770ace5dbcd2308f98738e6535477e9adcf9b. 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/IDA142306983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb72f353a4587eeb0dabd7b4a51cf83a85acaaf6f6a423d435d390115e29e4543. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/IDA142306984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bddfdce8b80eede0298eade2ddc7c72a4d5d51098d7a954c1e4f721594f7091. 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/IDA142306985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8b235a109ef9bb0f7a5fdea494b19173747c5c09ff233bc61ae0d1e1ae24c0. 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/IDA142306987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f646e2aec6408848a4a3908cc38ab1733fba8c12f5f63d27357a9ce337a2b6. 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/IDA142306988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69bfe6d89571fbe43a4deeb50e7b73a66c1e4c86ede663cd554cc422163a8ae. 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/IDA142306989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e69d6c6a46fa340c94c26ed24be865f514696950719380e326c1d9cbe3e4c1f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/IDA142306990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68103b7afb93a6f9b7f9b5f721497b722d1eade9c913a8240a455851a232dd3c. 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/IDA142306991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d0266b92295ff5041364111f57675e55e9a71a472a8e35d9a5be4cce76cb325. 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/IDA142306992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c9835d7d27d5b3e4c1c955eb14ec9195ffcd944676b5ac535cf50555061438b. 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/IDA142306994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a11073f80b349ecbf76cc1744c4e50a72a989e1984e31e805b3fc88e443f7a. 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/IDA142306995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec591fe69b398b4f8dbf1898f0a5514fb33915baa455bc93c940c5f71a1b703e. 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/IDA142306996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96226b9ad1b30cf15dd5aa0c1df34f28f6f173567c5cefebfa59cd427cbbab7d. 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/IDA142306998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e84ab92077677e3c0098a79fd3893a8c609140985f87523a0b5ddd1e50d98cb. 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/IDA142306999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecbc32fda068cf1d07505f3deb1954f722ab8250ab0f4d69091e39e8548972d9. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/AEA3A2461858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x121627f3e8c27e4775ddde4c5af38a36db24a396b8b2709089ed92faad5753bc. 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/AEA3A2362751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d5dd790599a958d94d5eb6141d0e9912b320d28507455e3c83c69b3633fc81e. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:43:59Z), 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/IDA142314835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c11aa0e7bc357b24839c7f89cfd015e28823e67990bbfdc8e7e1f7e9d543f1. 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/IDA141704570.