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 0x1d77297615ec8923cf8f06867212f908a6600aff5f210379165b1a65c4069a10. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4ab25481-ebc1-43f0-ab42-7eafe8d9a769.json and https://artists.proofprofile.net/proofs/artist/4ab25481-ebc1-43f0-ab42-7eafe8d9a769.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
5 Years Of Filth- 50th Release Album Sampler 1
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 0xfd211d8f7162f3e82d0c4263bdb7ca1a650f724433ca0a42177d70d46ffa1e1d. 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/GB8KE2401936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b44e628d4ecf6b77482ea537a269fe495685d5c5ba28f51f9fcf54f5ed6a88. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GB8KE2307822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8994c388127c83b8e5ead8a915f1d6f3734a3b60a1d0bb5dbecacc805b409ec. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/GB8KE2307824.
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 0x62590d4b93ad23707bcba29defbaf1c0afff12712b7f6fdc58a8d2070933b1b6. 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/NLCK42403878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x744cd0492e63e58d117bb4b4e9ede39a71029010f19156607be651acb2296948. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLCK42403883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b019057269bf88c95c97d345a19edd74e04b436c369b31b0abdb35f3df4850. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLCK42403884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12081a8e8ec9e5cdd8c1a32efc6bf475493bd3bf4d295b98f8e4c99b2f5969cf. 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/NLCK42403885.
Man Eating Lizard Dragon - Skrimor Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d0d77287756b983b68aa868a7b4130e5e612f6773342f5473f16faabd91bd6. 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/NLCK42403887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc40228a0d9b90b657f08f0041a8176fdd6b71c91211ab7bfad0f7a522aaa7bd0. 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/NLCK42403890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa1b1901fb6b4bf76a79732c3c56f71a8d6b649d4324507c6da022b52ed102f. 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/NLCK42403892.
Jungle Wars: Episode VI - Return Of The Junglist LP (Mixed by Mrs Magoo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d42ae46f8eb851e2bb141ad5dd199e054ff15cdee539f70db7c120a3735deee. 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/GB8KE2323981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d737cfb5d118b3d4b251573fda0253f140d61c7b92e97548e7a63f6d03afd9. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GB8KE2403606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd861b08a2e56a9ddccd28f42e5629d548a40270bc308b8f21e7c841e3adeac61. 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/GB8KE2421493.
5 Years Of Filth- 50th Release Album Sampler 2
Path I Can't Follow / The Prophecy (feat. HUNTR/S)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdacaf62f5c97c4da818068f9bff86a2044c5a4b3ef19f49f0e6995691f0a758. 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/GB5KW2302496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee27ef142c663deb1e07594fba6147b15d61102fbba37278e812d07065968a99. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/UKYJJ2210095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x322f00b00fdf5b9dd65dffcca78a35071fd80afe7874a02b0f5a5afcacc6472e. 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/GB8KE2419728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe893e3abb24e788949484120c0644ae4d004c3e986a4f1dea76fa012bdf5fa1. 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/GB8KE2416822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d962b9fe4cc5c2da26a91d923841a749b43d92be59fd71a4fd7e0dba209627. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GB8KE2419732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc7003c2b10951bb096c46bea65cde3adcda81908094c603b3bf6d76b985bf9. 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/GB8KE2419731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ea2dc9b018b240f50368cec9591b5ce752997de30d577f5a67bd0f766e2454. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GB8KE2419741.