An allele is a variant of the sequence of nucleotides at a particular location, or locus, on a DNA molecule. Alleles can differ at a single position through single-nucleotide polymorphisms, but they
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 0xe54c7ae2af7e57a5bb774c11551d5cff8e81f6fc4e6560307d7a7995481f81c4. 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/7db02ebf-ef3a-48b1-a323-bcab757fe5bc.json and https://artists.proofprofile.net/proofs/artist/7db02ebf-ef3a-48b1-a323-bcab757fe5bc.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 0xdf0e22a24656735922c31751ee59cfbdeaa9437a805b238dd394a01ac59858b7. 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/US8NN1100103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe97e003eeae38667c624c5add2b10979b109c93e3b29fb8a09de08ac57b43018. 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/US8NN1100105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x978c41996154bcbe4e3fd7688103e41ba5b62536f1b5fc359698e9c849eee641. 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/US8NN1100107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd646082ba9413b13cb9c1d4caceb350f9bb72634c249d8f4880e9775915e47c2. 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/US8NN1100110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a9b02202d07725fa032944a79723f561603ae594dffe60fad535f6ede9185dc. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/US8NN1100112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b3fb9548d8272b2ab278073c90cf45cc22db099656785485d3ce985f99d837. 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/US8NN1100100.
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 0x9471e0d9c7ae19aeca5c6adc9531fdbc5b264f616de73d5ffa8c63153bcd4f0c. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/US8NN1100101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b8e42640638cab313fbee6653e33f60dcd80bd4eacd2e1836c1d3731dac5023. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/US8NN1100102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd20db794a1f93f0f2ef49981a78a593fe76440459026ec3a481068b95777b213. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/US8NN1100104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb95d2b77dd5608e251b9d0bf939447059265ed7ce6edf5b1b9f65fce36044d29. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/US8NN1100106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x881d85037efb30753b6856c64a02ea60ebfea824b1ab5432305ce6cd3629f7ec. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/US8NN1100108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f73d635a303aef482371b6aa5fc01bf50d8dedf7113c34a857568479cabc8b. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/US8NN1100109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439b3bf54132b21c5c380ce39bb5c561781f9cdf467021ea9a454dc5700bfa0c. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/US8NN1100111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416aaf6d4bd7e80422fea566967b6631156c3455c8f31e6a0ab9513f1a76f59a. 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/USYP61200602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14dcba18b99ffc7508f565e9f28505c9c0893b713da198a7cc61662fe56dd148. 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/USYP61200603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a739668db7343ba8fc837508070441d1d780667b9ee1454f82181cc0e4e36da. 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/USYP61200604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8a50dd98dd5c14a4acf9908a7ba32ff52df3ba811aa052d9ff5ea4a7643da5. 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/USYP61200605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3af1574ad41a2256579e9aef2b5873174e7427cc6fb9b9fbc5aaa537db0f4e6. 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/USYP61200606.