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 0x431d76e939a061133129676748d9e4efd8c5ca14cc61a2e6f1a48ca2accfc727. Chain 2 (Bitcoin): anchored in block 954046 (2026-06-17T04:53:03Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/41229e83-a7f6-481e-946d-1e96d427b878.json and https://artists.proofprofile.net/proofs/artist/41229e83-a7f6-481e-946d-1e96d427b878.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 0xa15fe7bb0dc525b0de999c14ac87f9c51909587cb63ec583cf79c33414c3e6d5. 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/GBBFT1000120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5400e99482bb5fd0d36a83f44bcb5a8a6dbe29ef281c6385fea5a053410edc55. 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/FR80T0600250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc01b78af43cb6ef7fcdfd5b53bec2c85c9a214c2c0d17245f75178f590e71b62. 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/GBBFT1000123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394781ba8b7c9d6de58a5c6cbb11b89eb16312041c8975016b5c239e03dff7ae. 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/ITR551415199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fc747b9e0bbace4e0e06b239644eec6661b9cfeb9964325fba35b5f62b954fb. 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/FR0W69924601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ecd25f98c6e37f5ac64af24b60f4a6041494f65545a3c262041f63aaea408d. 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/FR0W69924602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf196a573e8a6ea520949de9dc72766c6dc2263868dc8daee96a0f23b418120. 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/FRX079200032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf34dc76b045778115ced4090503bf9b7d0be15dc90e6e67d4b13a251bef7834a. 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/FRY510778051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb421323df7cb6f1561cf201741d461f700209d1f0fe6b636bf9678ea6d98d8d. 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/GBBFT1000122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3c2cb578124980b5a79a721a3ab3348c8c7abc8eaee147e8d5193f24061097. 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/FRY510777811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d07c97e2e02ca64b29e84d64bc0ee188d5edb3a200c14f5b751716954138cf1. 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/FRY510777807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf243ad398cf7695058016f459b63824115f15c58b523a708c405b8d9353b217. 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/FR0W61777246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c40172fe8c2df2a51f42bfb28fbba361591bc3a2d78b2858a6d25d7b203c256. 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/ITR551413859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x682e93d1bf6558b6b3965a6d61eab8cbcfdf605cfb7f8afb9eb33d64bb3e5dfa. 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/ITR551500063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd36d52d688af116c071fe3189f18e202f93c4785d48a8f8616ad7b92b21d5bed. 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/ITR551413362.
Flamenco Masters, Vol. 1 (Pure Spanish and Flamenco Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb421323df7cb6f1561cf201741d461f700209d1f0fe6b636bf9678ea6d98d8d. 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/GBBFT1000122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc01b78af43cb6ef7fcdfd5b53bec2c85c9a214c2c0d17245f75178f590e71b62. 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/GBBFT1000123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15fe7bb0dc525b0de999c14ac87f9c51909587cb63ec583cf79c33414c3e6d5. 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/GBBFT1000120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc01b78af43cb6ef7fcdfd5b53bec2c85c9a214c2c0d17245f75178f590e71b62. 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/GBBFT1000123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c6e1c41f94ef143fe766041e8a8ba69f77f7de192f6c38f1e665fb572314a6. 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/FRX071100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ca1cd60d088d26522d8b37453fa01f5f9f5eec21bc8e80d5bcad5c9d525a4b. 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/FR0W69992570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccbedb40cd86750218cb1a6c257f8948280af9afb6b81919a177eb0b1e9a48d4. 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/FR80T0600246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e171798d5365d77896dc9c0f94b19fc9550278722884471b7e01b97509de3eb. 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/FRX079600061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ecf63b93547d592d2a40f55b3951b3cb2b6604df2e867434a9ea287442dad16. 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/FRX079900106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d06b3ca9f120229fe7e2191ee229bc67a25d07b263665be5091937474561d2a. 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/FR0W69992568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a68e341f69dcb3adec0d6477370a8b8369e4763df93c3816b77d8919c18aa9. 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/SEYOK2304497.
El Decisión en la Temporada de los Cerezos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8943cbdd9784de9adb81d84d456e0623c71867fdd5725b08d3831ca263a9c93. 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/ITR551500122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f2bc479352085d005bc02eecdadcdf9b494778baf54db6fd63d8b0b4f0162a. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/FRY510777803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcfdb96ce031523df5f30a7ca3a5ac8b2e0aec348288fc6602e0b4607ed0ab84. 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/FRY510778034.
Jazz & Blues Smooth Mix for Warm Summer Nights
Modern Restaurant Music Mix, Vol. 4 (Genre Mix For All Ages)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7de8b9ece8e71cd7c4ab7214897fe977fe040398ce7fb926581b5893dfe869f. 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/FR0W69921624.