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 0x186d90eb38a7a574688a59743951bb3ae5396264e991b559d241415606b89ba8. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d6f1bc16-7c8f-40de-bac6-7adff676a8c0.json and https://artists.proofprofile.net/proofs/artist/d6f1bc16-7c8f-40de-bac6-7adff676a8c0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
In at the Deep End (Compiled and Mixed by Tripswitch)
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 0xb76198c64ac6b59079ecc628703fd9bb8a0c5d2e457e47789bd9fe7b5270dd76. 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/GB5ML1700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e2b639a2dc0af459df94babb054d97ff801b16ff9f5e5f011001062988a433. 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/GB5ML1700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b756850002da77dd75c2efcbc1d22973f708d75b0b788254e4391ee04fad6b. 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/GB5ML1700008.
Dub Play & Sun Rays - D-Echo Project Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d72931640a67a540c930e8db4b4a95ab70eeba6731fb6cac947751902086100. 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/GB5ML1700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a00a5c2023e60646f976ecb62d2e209d87441d2d498baf11b7aee5515d3efa. 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/GB5ML1700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff93b22bc371b13d8a342df5822838937dfeda05ecfa09a5ac4da62e8e51066. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/GB5ML1700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa6d03981f1e511bd77683134c38b44599c285dd1424f952d4ee55bd75cd984. 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/GB5ML1700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5cb4488e5f034a7c69b0523d9ea1a63aaf4cbfccbb829848c3f0a1c7a27618c. 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/GB5ML1700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d8ca9d4f0d0d057497b76bc14962df2394e42015b934e89fdec389aef0f31c. 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/GB5ML1700016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b40684fbdfdcf4cd06be140799709d2a0ccf4fbd3708167550314b8efd8676c. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/GB5ML1700018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec61e7391c6085aa10afd6b1e6b93b3dd0734fec93be9272f50d6b885513ccc8. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/GB5ML1700021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0650765207ad11a1e78db909a0ff52db2c4bdcfe9fa5ce2a27da45c1d4244967. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GB5ML1700022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d3f2fae1e2cd1d07d0211be1d28e830dbdfd0c11172f2a2ae15597ec2557513. 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/GB5ML1700025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ed3bf482c7fce2d9d00cfd5259e6269bff22149a6e33ca4644261acde98ffb. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/GB5ML1700028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x050cea62ebd21e957dd10cc1a7a5757ad2384a0cafbab68f3f371c394a7499ad. 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/DKZVA1560858.
In the Garden of Music - Manmademan Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c551b8a1d55be2b934be9896bd449e34f3a4ba440a2460e203ef07d812be486. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/BEY921507556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc318c02c6f4ba64de809c7bc1b415344e79130ca4b3b4a937de9455e319544f. 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/BEY921507557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fbe114bef067d3b7cc5e3141ff34ce68aae1b8b2203ca4834f3e20969daad11. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/USLZJ1390966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a51c5463aec4a06ad50f36b311e62df6b02b49c4155d3105ae1472abed0e2e5. 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/USLZJ1390967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66ba4f57eb35cfb4871f97c8eab0c214333f5d77ba3df72967d76926b1cb770. 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/USLZJ1390968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf60a610b0257bd4b04fd524d333cf2128c90d6d3fb0584feba722eab9021701. 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/USLZJ1390969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde60e64be10ef1381155537dc4edd8b32009db1422d3b41824dfb25774597fb. 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/USLZJ1390970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41886da21546449eee24b7c02903420cd546283ebbd0075d1244df6f248d9a63. 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/USLZJ1390971.
The Groove, The Bass And The Dubby - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e7fa54cc5400c402780ea5abc4744c52569768a356f74ac63f8ba26d87ccddb. 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/USLZJ1390972.
Common Center (feat. Maya Rose) - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2bf49769fa758626c0af1ab9f635a348c80792f60d584a89a8af1854b922e4c. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/USLZJ1390973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6d82d61e280f1a017ed9ec6e84408d3d2a215d1bb29bf055fe9658de78e412. 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/USLZJ1390974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f282f3ebe402b40c7a97b3940c1d2916ee108e863f47ccdc52dac6a35d6018. 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/USLZJ1390977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbacc0aeae08dcd1141dc9538a3e0f7fa3acc18a11ebc950c167cd7cdef138d5c. 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/USLZJ1390978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aeb1771e17c8aa7e60d2cd16706aab4eb22225f456e671eee9e826fb1234354. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/GB6J31500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x051464160387bf0fd7b65b1d03e1354342027763ebb3d65d71569e08338a975f. 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/GB6J31500010.
Cyan Music Chill Out Sessions V.1 - Compiled by Gnomes of Kush