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 0xfd84660cf2a3f1ae7c10f84eea4fefd92e5508f26de1ecab892b23d8f8974c4b. 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/e0528036-a217-4806-819b-27fbf6d9cd58.json and https://artists.proofprofile.net/proofs/artist/e0528036-a217-4806-819b-27fbf6d9cd58.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 0xc2d558e49e07531e128822e24a0af43ece78570e070035315bc5e2d4ec08c0c5. 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/USDY41829581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac5f6cc36e69f19b6f5ccb64dd88178c8611cab6b554d291fe48ff45819e6a6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USDY41829584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b12c01487488fbf428d304b60e0a30cccc3784d424f06a0fced0b34e7ce5795. 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/USDY41829585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f87621529e1e6dcff2113c8d6374e2847d1a92a9e6bfc69a0bc2da2fa188cd6. 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/USDY41829586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d44261dd5cdef385c090b5263d0b3322389647aa508f6c037a288adb14a027d. 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/USDY41829588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x133f7040c128a697c4d8f07b710826cc536002c9093b04ff09ada77ef5dba158. 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/USDY41829589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d0bb6f5c44134fcf18bf1b9d5c9751e71efe087bd98bdf1b82bb16140296c7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USDY41829590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc098b17418fc661ff3b38e6a5f9fc23db4e793cc231376411a6dbb05d0762557. 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/USDY41829591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a74257720e3ac6758edbda1e7defbde7f62a5bf919aab4b579707c226d49f27. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USDY41829592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ca9f23436d8982165e8a0d32ef2184a5410092753f126382055043798803d87. 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/USDY41829593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3299b1027cdbcb8cdfc6b06af4cd8c5a821129aabb218b2c665f8c53d442f258. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USDY41829595.
Sueño de un Writer (Versión 20 Aniversario)
Sueño de un Writer - Versión 20 Aniversario
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1e722a467d84ac0084bbc84615a57a707c69e787dc35f0761da1060c5a4cf3. 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/QZWV32379027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a9762e459d51c1166520cdfb7a7e02bce827b349cfff05eaa39be010f4236c. 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/USL4Q2036307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x133f7040c128a697c4d8f07b710826cc536002c9093b04ff09ada77ef5dba158. 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/USDY41829589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a33aa7de824193100d9d461aa73829c4100ff4baeab36dd682fd19c29e6a77. 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/USDY42236341.