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 0x8a7186758a8ef2882c9924a92d4d893970f5b39de1403836302983489863497c. 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/9b82773a-441a-49dc-8cbb-7f53abe0cb70.json and https://artists.proofprofile.net/proofs/artist/9b82773a-441a-49dc-8cbb-7f53abe0cb70.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc61bb34d1ec093b85af9201073b0bca6c2f728e19843297699db22882a4fb3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0MGTHp7wHQj6xvA1bKZdlE.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0MGTHp7wHQj6xvA1bKZdlE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6bf01b56a9c657e60d8e49b43e71057c1f1791ee49f7a4b700bf85d361772bc. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1mKpZeH6wpdhI4jpGYy870.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1mKpZeH6wpdhI4jpGYy870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02023e04fc1e5908e9b2bb5463c39c39e037cda3aae8372a4548888e1a04e9a0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/10ewzOX2pn1c9QFK9CGQpn.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/10ewzOX2pn1c9QFK9CGQpn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c57884a8fa9fff86a32d761da413f85bd858122a176690bc46532a63ebacb5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0ZF0cMx6gnYIdRkNEZ4Kdn.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0ZF0cMx6gnYIdRkNEZ4Kdn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9463170a1b28bb29fad29f4a27c942c54e490c30c34fdca8bad81a5cf4c7034. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/54QL92zlKrDufXrP9t8Mcv.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/54QL92zlKrDufXrP9t8Mcv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1931ee893b6f185fecb7370cd96ae04ec072d219b977444f6bd4f30ca50590fc. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0k5K9gna8sOWwGi5LN2ol5.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0k5K9gna8sOWwGi5LN2ol5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf17870324f0e2ecad3a2078fcac97a455d391f3b891b36fc1674837072d954cd. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0bto3ddcTZOntOWArwiBIs.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0bto3ddcTZOntOWArwiBIs.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5069f3b36d1cedc828419d9f96b5f2c615de44fde471dab1ee352f90da4228b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1nbIPzpXWUS259KYeCBGps.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1nbIPzpXWUS259KYeCBGps.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e57d04e60d73a375ec9f6565a16a4f2340cd7e5a6537316ea8514315f832a2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6owhbJk9qPSNv6F4WlFCYd.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6owhbJk9qPSNv6F4WlFCYd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce2c38b6581bfd61e39c1eef1f2f7b674a0c833fe4b977ddcfc54eb7e078e86. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5TuiZlrgkRlkADdt691zeM.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5TuiZlrgkRlkADdt691zeM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841e57d70674e76d6e380267b433e60b95456e8cebd22faafa42b38e2ef4e031. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6yGo1D16rlroYTxPzR6Q9k.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6yGo1D16rlroYTxPzR6Q9k.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67a03c700ee84a492bcb319af6452d54eb9c96373db9e95177a3f9831729972. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7bQT4ms2L8cA6NzABrSKYC.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7bQT4ms2L8cA6NzABrSKYC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27cb7c47d53da34c1eafd11b7c5dcba679d64f3ea2cf5abfdad0a5086571be8b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3LBvCd7GSvDJYxeJpgcuAu.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3LBvCd7GSvDJYxeJpgcuAu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39873864b7e04f41fae14a57346644bfb71e166cb56baba251a864cb0e4b6e4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1dI7k1PddL5YSuT4SkEtwR.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1dI7k1PddL5YSuT4SkEtwR.
{"copyright_id":"0x22f0ee117cc342f367822e1b78dddd65bc2caf5ae1a67595c326a0217a8c7fc4","isrc":"ARA0B1700005","name":"Celeste y Sol","registered_at":"2026-06-10T09:30:51Z","spotify_id":"0oGhtdsumToZ3JYns8hF8U","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f0ee117cc342f367822e1b78dddd65bc2caf5ae1a67595c326a0217a8c7fc4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0oGhtdsumToZ3JYns8hF8U.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0oGhtdsumToZ3JYns8hF8U.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe931bd628f3e2fc7329a6c8ae92c6db148b2264c9719c700f8384bbb3699a957. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4qkFoXKCtIOcMAaTbPmY0w.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4qkFoXKCtIOcMAaTbPmY0w.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94320e7f892633d6cbc3d06acc74747d18c5f04e3f8e039b0b880359c33beaa3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1BLWSZewzgyYzZvzNktwIm.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1BLWSZewzgyYzZvzNktwIm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d75382b9fc396101c46d0fc13511ec707df0b1f82a0fd86837602821c352d0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/08cPmcoaX0E637WihAjGDv.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/08cPmcoaX0E637WihAjGDv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ddee4778a971ecb809545fa0668d445c51ff5364e0a715a29e0be2782a0032b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6qolKdJ5nU4yMupoNy41YN.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6qolKdJ5nU4yMupoNy41YN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fec0fbc688b95d61ab39b5686e0b428946a233b9a5c2940307c3def459a9e9f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2OzRdN6EUUfVBl7QACp6B1.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2OzRdN6EUUfVBl7QACp6B1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50d389d8094d96852fb148d9b1d53a688ef15eba09dded96e210e621da43c9c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/091ssw4a0YJtZMeSph8Qdo.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/091ssw4a0YJtZMeSph8Qdo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24773cdcb35fe8849b70869414b26efce8ba22eb0eb75b898aaa1ceda689796b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/19ytYI7FGxUQQvYxDsVKns.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/19ytYI7FGxUQQvYxDsVKns.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4730e326c0c659bfaf2b0bd105f002c848643800c72f5e0e0f7b6799bbc4e0f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6tvJadFkM2xR6vaDI8AMPo.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6tvJadFkM2xR6vaDI8AMPo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d04d537e7a50897be2c69dad8185a32d615912b6cfac44509dbef9bae07890. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/47EtZNpOtwE80IQA0X9Izd.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/47EtZNpOtwE80IQA0X9Izd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0220cf2c5f4db516a4c82db6b73e5f04ea5aba0ac1955b9ee373e576707ed7c0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4wrdly1XwZaZP8b2I4Iv5t.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4wrdly1XwZaZP8b2I4Iv5t.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6bf01b56a9c657e60d8e49b43e71057c1f1791ee49f7a4b700bf85d361772bc. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7jb6HNWbzfsgeweborx6ye.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7jb6HNWbzfsgeweborx6ye.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3dca1c84ec42702894faf240729976cca9491a7a7a13ac40606033fa77b573e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4WinsmF4ahUCIg4L402CFg.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4WinsmF4ahUCIg4L402CFg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda3dd4208fcfc1186ca95d3c50ea6b4447eae852ab918e3f26c5916a54f706f3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0nMvYcQOL5y6yKcvDKP5NP.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0nMvYcQOL5y6yKcvDKP5NP.