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 0x8f0ac75d08298005abbf5a24e3e12c2e29afe98914c58557983332b54dcdbbdf. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d9913ebe-f4d9-4b84-b9d5-c49054abb6a3.json and https://artists.proofprofile.net/proofs/artist/d9913ebe-f4d9-4b84-b9d5-c49054abb6a3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Las canciones de LETRILANDIA, Vol. 1 (Canciones Originales Remasterizadas)
El país de las Letras y el señor Estudioso
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 0x3d59fb6dbd87fe25026033fecefc9dec33d9099dc821fed0a1266aa611145fca. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:49:19Z), 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/GX8KD2307271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c60ad3ad872a5cc545833c0587217c8de4558b60ff4db249b23a9bdb563a5a4. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/GX8KD2375382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2cb192c55fb52cd01bf8f24453065c808f6e2bb7b3b6923f321d958c39527dd. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/GX8KD2308330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd2b18a4fe3a08ef17a9bd84a198d869e8e3df5216a26b882c6d43b125b0c0eb. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GX8KD2356737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f3c743da9d28e103a75195d2386818b597344a76631723c82d6495efa5d10e. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/GX8KD2379216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bfe62d7a45da0becc996098d589548b92f2297eed73482e1cf943095269f08c. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GX8KD2300692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a6485700a7b54453c2db6c74dc24c0dc8dd32fcbfd14c3a20e5cf96eec4d23. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GX8KD2397127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ba277eee6aa1d1eef7cf1f2a059ea28d30cdb577698392a50456ad3e85e008. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GX8KD2357764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d942d690546885bb71c4b941597d547016e1e4d3f962f2ce2e81284ff9fb630. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/GX8KD2388793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04ffd5229b174b9422299be8d186079cd1be0a4c64caf3975dedea710f0000aa. 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/GX8KD2350607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x532bbcebbbf55316e73fee04e589e6ec57d88102121b193a6a89051f49f03295. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GX8KD2331703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628f7c083c48b5b1a30eca637f196298156e910be7a21e997066481e0e1acdc1. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:55:58Z), 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/GX8KD2377885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3bba72a482a872877069e9c0b8bb87d523c1bb73eb82d5e79a9d4d2f67fa319. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/GX8KD2335849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x558eb4cd31d0372e9a40101e897bb3d6f5e9ff97d9b3d3887b3c8c37c530e765. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T14:35:37Z), 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/GX8KD2305113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64dcdbd4159166714e3d21840c5dcbebaddd207d1265b4c271b748bd610a06a5. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/GX8KD2333797.
Las canciones de LETRILANDIA, Vol. 2 (Canciones Originales Remasterizadas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca144c71a229052b84e3218784bdb2f5b93121e752332c46be3a784d0ee4cc03. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GX8KD2388037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ca7279ba2964af2166ddb35c599d3b2eb2d4a1c4e1cabea9b4c474f7ca53df. 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/GX8KD2382558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856f7fb36de04e83e2fef3f44231a38b308996a361b03cd9e087bdd244c02411. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:08:06Z), 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/GX8KD2390130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c68a9d0d2d8956cf36d430e8fb081cb50e68cb982678233b9a124678dbbbfd5. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GX8KD2387238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad9ecf527f57cb992fab1cf57f810b2ccff080bd678adf203f6f2a33609152a. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:46:33Z), 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/GX8KD2379785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e19c178388e68a201de9fa8c0eb1ee07ef9d84cb280eafd369a4c40f3ddd58d. 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/GX8KD2374162.
La periodista K y los sonidos Ca, Co, Cu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9d4cd6b4a476527fd3cd84e8bcef62dbf3590342bb6b9638dd9f1151b515f8. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/GX8KD2322489.
La bibliotecaria G y los sonidos Ga, Go, Gu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f546b2fcb46bc20cdc2ab5768af3a7fb2a40f0fe1b3853f36472bfcbfaf09c. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/GX8KD2363628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad632b6bf14ba942669f5b98549a52f8f4c32fed0b00773169693a2f44347c56. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/GX8KD2378637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae0cb20d75f0f6504df7765103eb7b3bb3405e5a4fa9924c8c71e7e8e1fc054. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/GX8KD2337457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100c163d3714fc2f48b372476f324392e1c708f7fb5dcc4762a125dcd1df875a. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/GX8KD2351639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ec9762ede615a124ebc81618d2aba47cb21714816bc4dab865af4a7ebe2714. Chain 2 (Bitcoin): anchored in block 956485 (2026-07-03T10:53:04Z), 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/GX38U2368128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a7236f814af6a6fe7420867a1f5c5c9102503ed096cd546daae1b972a51b1c. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T14:41:47Z), 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/GX38U2336689.
EL LIBRO MÁGICO Canciones para todo el curso