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 0x6f93d081410694275991f207792262ab96ca2bf398db0ce0776d5d5f98350961. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d03a8237-1c34-4ea9-bec3-4ff93b138c8b.json and https://artists.proofprofile.net/proofs/artist/d03a8237-1c34-4ea9-bec3-4ff93b138c8b.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 0xaaf853c5b7782d00ac4f894b71b14591140c06c7d4709bb36c6c2f9b97988253. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/QZES62234993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a94c8c4485c32784fd82109ee8528ff0f02de79facfde74558cd70df9b7fe8. 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/QZES62234994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e26070fe5a74f0bf2f60d7e69fe7676af95fdfeb474b5eeb5f777aab9e2e09a. 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/QZK6G2135955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9e1d722d81d71a273bb5e1e598c1c5584681703ace50bd840157ebf332d7be. 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/QZES62234995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4b8c876dbe50228702bb33c2a70fc9f59f6d5dea776f020717cccaad154440. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/QZES62234996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd471913fb5d66984a14893a0e72e493293cd7306f61dbdb838dd1c6d3a3a7643. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/QZES62234997.
My MOMMY Dom Spit in my Mouth and Now I'm a Commie - Amended Title
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650f0adf97fff2d80a74b442789cc378f17bc2b8788b30f5374db9cdfa973f3e. 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/QZNWZ2184342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab7d59ace831152a518c03d1797f0a8068c74230cd27f2098b5240d93c11776. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QZFZ22235736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b71377599ab00e84e3dd78b285f6e981c249c9328daf2a8fc15c03458f90c1. 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/QZES62234998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5053462ecf4e96887d0dda4fb820af3020251d100d7a6ce0cb9f289d5f0fc0. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/QZES62234999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d886e915ed798d1ed37d5022dd24172aa83c689d620bdb16b8fc567692b490. 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/QZES62235000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a09f6d4b88bab36d0109f99995e6627367ddc732154e9fb1c901761b352c2e5. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/QZES62235001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b039f8b194cac87c658f4c9b11c849a22268904ed308f8f32a16a8a1c1c548. 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/QZES62235002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa69072e7cebb5de91a99581c69c7aac74dc51775f24b72df3aeba47ed58146. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/QZNWX2422197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff9e502d204a39ce21ad7dc36521d4db0ca84a3128a2752ecf351b78917986c. 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/QZTBA2376100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe81b8f106647438568f2e01a9d595856fafb2d072cbb919c7414cb23f77b2c8b. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZTAX2202898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b344be7b3281d90f9bd3b65d0936d9ce0141451c2a68547465b4529b85cc9f3. 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/QZMEP2202076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a09f6d4b88bab36d0109f99995e6627367ddc732154e9fb1c901761b352c2e5. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/QZES62235001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab7d59ace831152a518c03d1797f0a8068c74230cd27f2098b5240d93c11776. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/QZFZ22235736.
My Mommie Dom Spit In My Mouth and Now I'm a Commie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650f0adf97fff2d80a74b442789cc378f17bc2b8788b30f5374db9cdfa973f3e. 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/QZNWZ2184342.