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 0x8f42bd0d2079aa09a1f75f957de007c42d0349b06f1f153b7caf5ef258f5bfed. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5b653b9a-698d-4f73-9b2a-6f869cd92b01.json and https://artists.proofprofile.net/proofs/artist/5b653b9a-698d-4f73-9b2a-6f869cd92b01.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Pneuma, el Poder Espiritual de la Música Antigua (Pneuma, Spiritual Power of Early Music)
CSM 142 La Garza Del Rio Henares (Instrumental)
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 0x1a048df9ba9a0d5a9108c953672883e1f0843e5f5b5b18b79bfe26845ceb62f8. 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/ES7730008416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c435563562585b9bcf9aaa17159170c32e176d5dd45e81a05bc65ab19723dbf. 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/ES7739408016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3197388c9bc8f5d054cd944f22c888616ce9675c0acab6a385d1f0c2042d3d60. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/ES7739908302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb9ee55c9db8c431f93fec3447f0f6ecac3130a3d6af60a18093d1413ba8d805. 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/ES7730108295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f838fe1f626c6185ef78d9a7069134d6a0c435beff8f6061b8f1142fac1f5f7. 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/ES7730308471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7674c32708c6f11e3b7fe024d599d7a67fe3aaf59fcdcc1a5f74386df3db4d5. 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/ES7730208625.
Kullí f- Wyúdak / Sqání Hadh l-Mdám. "Misticismo". PN-200
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0346719f08d161901944924bed475b02d442dc6357e52380c8aac4b6df62572. 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/ES7730008408.
Bitayhí: Zejel "Oh Cría De Gazela", Zejel "Este Amor". "The Splendour Of Al-Andalus" (M.A.-M026A)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa61e804086a1101ecb0b84e8567d71dbd6e4f7185abe161743afb135b50bab. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/ES7730208727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb5c9951016637163b1faa677157772bd7f62423366159a96f893296e8024467. 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/ES7739808271.
San'a 'Indama Sadá - Min Suhayba Barat - Gazálum Samá. "Nuba Al-Istihlal". PN-250
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703058a3d7536a07393776e4759db20d8e73ba49326ca50f3cc96216dfb84be4. 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/ES7730008469.
Twíshya Qá'im Wa Nisf De La Nuba 'Ushsháq, San'a bi-l-l'ah yá nasíma s-sabá. "Luz De La Mediterranía". PN-090
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b7e0b3c68b59e55cdbbd24553b6d0f3c62f90cba14593c495ac44240f95929. 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/ES7730208728.
Oración De Medio Día. "Alarifes Mudéjares". PN-170
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4189e5cb274c7e9d118af7d0c6dbfb7eab8ad1e7bf3fca301de2731a6634725b. 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/ES7739908295.
Twishya Isbihan. "Escuela de Tetuán - Tánger". PN-150
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe293fe3cf4b27fcd587fda03d438f36b03d23a365e38641d1d00c87ac5df0087. 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/ES7730208729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24cbea65a6a78dd725d9eca49d714b46219b9fb884a8fa88557cc12e5c3c9825. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/ES7739908220.
Ky Eshmerá Shabat / Si Observo El Sábado
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01bfe2ce61115d485e7a958fbd666dae1231a0abb15cd0108d57a3527ff82fb8. 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/ES7730308568.
Maluf De Constantina. Andalusí De ArgeliaTradicional
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc5ba57426fc338851000653472288f79eed9aff58b99f8d3143326ceeba88c8. 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/ES7730208661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9be04a7eaea6811868431471a8422c56274d81e607f20b7bceb85c08bedb67a. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/ES7730008467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x552be950b5c7cf08c0855b1521c754f7c1f8d79c203e1fccfbb40adb7f52f988. 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/ES7731508026.
Mi Corazón Adopta Todas las Formas. Muwwál Modo Síka
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82bd170f895c05194c6183d09a8786f60ec6daa352b53953af86b338b1ca438d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES7731508027.
Mi Corazón Adopta Todas las Formas. Muwwál Sáhlí
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc0384b21eb9a897832360e17705f68837bc0a29ba2553048d6247f6441fa72. 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/ES7731508028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb84c0209a5a2772b1170bd2efe3cdf6139796c925df495ec56805ab51a8e5282. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES7731508031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d908d5327d583de584da812089f064608888d3ca53474c8a4661e1e4ce396a. 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/ES7731508035.
Rumi & Ibn Arabí. Oriente & Occidente Siglo Xlll
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d9a5e43a03ce66b5744f2717dbb96df1946e34691db3e03ad1a915dd18073bf. 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/ES7730508291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003e3c38fd45dc22b15fe397f024f44d527e47d188d6df1fedade84476fff9c9. 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/ES7730008410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f83be8fa414912ebeace668695949bbea5368bcf7752c1b83f1d3709bb3cd7. 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/ES7730208543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d99bd6825a43f441daaf17b56a453ee463902a39ad3cfcbda3e8601c221b832. 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/ES7730508299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3844bbea5f480f8896a0b2e37e462510918fcf1eba8163ae2f5077f1485279eb. 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/ES7730508300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382e131bea351c240ff82186691ad069f25d2f27ca43a4d351f9a3e0203022e5. 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/ES7730508302.
Talbiya, Oración Del Peregrino (I. La Caaba Del Corazón)
Muwwál Sáhlí. Laqad Sára Qalbí / Mutaqárib. Li-Taybata dhabyun. (I. La Caaba Del Corazón)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae6a9c7b3a1a1541a48b39db16392f79de386cb9afd2212e81baee8c825998b. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/ES7730208548.