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 0x7b9ebea6b7e65c6adefa15679d2a93b9d3eaa69afcecf24fd4d0efc1e35c7911. 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/3d0438ab-3469-427a-9753-010018fa0732.json and https://artists.proofprofile.net/proofs/artist/3d0438ab-3469-427a-9753-010018fa0732.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 0xd92c1b731e4c6860cdf618c67ceab6cd7a5bc1a3fbed70e93c7b2175a3b292a6. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/ITQ581600020.
I Don't Wanna Live Forever (Fifty Shades Darker)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae4b70d741776effcd399fd20e64c5fe7917b3a0510d3cc824f4d8fc46c88b6. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ITQ581700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x367f433e120d1ecc668db4adf1cb98e1936b9e7fbd508d840bd77fe4349f43e4. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/ITQ581700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040a078a9cb790c5f8111237221c7d9741b0b495a2d0abf24084b204c6c9f821. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/ITQ581700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeafcc19015c993b1f4f6693f3c283b0ee48df6fe0c614f53b4b0894ea20b519a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ITQ581700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c083833c146448fa5088063d5af289e9a4d9fa9850ee67aaa2d1562a6a8b851. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/ITQ581700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x133ee6cec458a6b498f9f6e48371d024c0731db82339c06f40266eaa7b7aec44. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ITQ581700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x380119ce6db58efea284b43e421e66e20acc6855f9fab496e4778ef825935373. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ITQ581700021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2012581875c653c3c0f3c6b7f130d55c8fde0b636d17a01ce5c9de2b7985de. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ITQ581700020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c983346a883e0393254b58459d449086621227bc8d1e51bd61d1765a7ab6a8. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ITQ581700022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ed9e7f169d1c3508ade777ad69254e32b71f7c2f21ffa4133acb79ca4f3f10. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ITQ581700025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d087d47af32fc196b5a05b94ea40093e66096180a37b555401299f9c35d22d. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/ITQ581700033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec04c8e1a298c90c8f82920886b0d0243754ff64a277ac122d4aec48e2b3ada. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/ITQ581700035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a7bb6ae72033914ef7085be16c6e9465ae92685d05b9a75cecbb697ed529e8f. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/ITQ581700037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1fe3e754a1b5ad17c07ddbded0eace36b961255540b4bb1af6691491bbaf489. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/ITQ581800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd78dbc578f412df66c2ed00be099d4d708773c9674a8705f09ac766361488a. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/ITQ581800005.
For You (Fifty Shades Freed) [feat. Alana May]
Heaven (Fifty Shades Freed) [feat. Kamilla Wigestrand]
Heaven (Fifty Shades Freed) [Acoustic Piano Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed61c042690e79dab23589bd9d6c0c9c98b051b15bbc1c36f0561ba4a77a5531. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/ITQ581800015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecbdbaf1ed1efdc1901bc05224409511a59a6c5c46457d06f39d41882e7088e2. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/ITQ581800017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f4d6e801887727f217fd30219641604ec2ea43e2ff0661ffb39c2a6498ba3b5. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ITQ581800024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb68304029117f926a447bc2e40f1210c7ced17d4e95bf0be79aa2202126c992. 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/ITQ581800035.
Astronomia (Coffin Dance Meme Trap Remix)
Astronomia - Coffin Dance Meme Trap Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69032a554ded72d91274d25a77a4cb1d4787e4275db582f9196b9967b01b4655. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/ITQ582000019.
death bed (coffee for your head) [Acoustic Mix]
death bed (coffee for your head) [Luxda Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9daf2343a91119ec2a16141152e0d74cafd41a93e5b96d5dd5d44c1fd83e2c34. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/ITQ582000038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ba8d0dd17ec4fd360b1c7ecd56e77a71bd51c37b4faeba8831432aebc02b47. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ITQ582000054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf11d43aecfebb657bc211f24ecca95ca23655d978bbb35efc9a522d40ab56d38. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/ITQ582000061.
Sweet Dreams (Are Made of This) [Acoustic Guitar]
Sweet Dreams (Are Made of This) - Acoustic Guitar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e2311acaf78433dde597b5219bba7241bc00ed9754ebe609cd7017ac8a4530. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ITQ582000057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1589c982685afa521a7782b0099ce01b0dbdc0738db32ff7e5ab794e8bc9c809. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ITQ582000080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf11d43aecfebb657bc211f24ecca95ca23655d978bbb35efc9a522d40ab56d38. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/ITQ582000061.
Gangsta's Paradise (Guitar Acoustic Mix)
Gangsta's Paradise - Guitar Acoustic Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x334d6e7f54ee0597a37674e88cfb63f96aaf3814d598923a5bbeb7453f1d5bb3. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ITQ582100189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90babe0f374add0135576d3f0c16b74f8dee404d1668f54fcb3af6ef1c19afbc. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/ITQ582100187.
Moth To A Flame (Acoustic Week Piano Mix)
Moth To A Flame - Acoustic Week Piano Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc1f81b106048e811038f09b63d1ba3710b0e82696802c0f4302b83ad1e8c66. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ITQ582100217.
Something In The Way (The Batman Soundtrack Theme)
Sweet Dreams (Are Made of This) [Acoustic]
Better Off Alone (Dj Satomi Vs Luxda Radio Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda66908fb502dd622c22b10be229920e8dd4097e2847e0ed027e98738dc387dd. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ITQ582200283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x667a727836b8f35d16213f98b20d06394070394b111f77148bd7f60c6e7c3069. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/ITQ582300409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eae53c8d9369cfdfafccbac5d63cd14e24e5615b5419610ab4356e64128d46f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ITQ582400428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc66949ca530e47a97b9a56e68ddf7e8ae1dd7127a1b383a7f624a0f6db0b6409. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/ITQ582400430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2801d99e118c9eeecc067327895bd39d9905a21bc54d4e4fddffa9d8d7a1d133. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/ITQ582400434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23be21059c05649cc97ce95580d4c19f22be773a91b2221f36280fb6c2fb79e5. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/ITQ582400435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ae9c9ff31da12e96b9a49f5364779b19c520af30f44a0137a74a96fe6efcff. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ITQ582400441.