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 0x6745cb15b44efa08ede019225dd16199862b94c5ab1f5a59a65227305bb8d7ac. Chain 2 (Bitcoin): anchored in block 953694 (2026-06-14T21:38:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6e0118f2-de5a-4067-8124-3090857f18ce.json and https://artists.proofprofile.net/proofs/artist/6e0118f2-de5a-4067-8124-3090857f18ce.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Unnusual Confusion / Neoliday / Pupil of Old Skool
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 0xaf60db216828a6b8231c848c3a25056963dd3d702be9dd5e04d9874139de708a. 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/ES7410700106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x144d4c085c427f7a8d8c72c98976b063ad9b91f6f18d04451ec31d7fcf4fa2d9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ES7410200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdddae3b6bcef307c0abd4afee3c6e5355b061e77860e2c605f5e48e8fc3a4afe. 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/ES7410200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc28df7147c3d93673c528c6139d98dac826d6ed8183620e5d7917f1c5f5c1d9a. 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/ES7410200024.
I´m Falling in Love (feat. Sweet) [Progressive House]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x620122df907dc16b197105e3f1531948511ad5c66b5f18e5c5b02cb38f35e565. 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/ES7410300071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2beb07f2921f17e4e88b4918e96223890e8e12b20fe1746d5a30d85ecd0da77. 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/ES7410300072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b0408d2dbca409ecfa52976a2d65f0f4bbe407f1eb36553011919f5cb15874. 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/ES7410300073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb773760dfab641b948c49feab07f633e07c0ffdaa6446736b90098ee700fb612. 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/ES7410300055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277a9966d21da945684db17412b03f9b49ccba3e8112c276957ac9b6bc861d5c. 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/ES7410300075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf60db216828a6b8231c848c3a25056963dd3d702be9dd5e04d9874139de708a. 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/ES7410700106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fa26cebda1cc41f3f70dcb6cfda0aab7ffbace53fbbcbb2ec2427830249808c. 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/ES7410300077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4778a09f6c3262d5246439ac71a82a0f8332b566cfaa960d76e2837854147ae5. 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/ES7410300078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df7c9acdac908dc29ccc251ec643fcc077984451e26a5176435eef2280365cb. 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/ES7410700079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c772018a3194415b37538b247248572db04e04626c91e87c8f38a340da03e9. 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/ES7410300081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa51aabbc2a104c5ca88a25681430d955c15ba4c7f4bdecf836912b132abfc1d. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/ES7410300074.
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 0xc2525575a80733c4a6bbeb338327f6dd4e43ea53607a6c8b94adde17c04a6982. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/ES7410300076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x852534c27e9fe4525e6b2f53d9f449d0926e87874bfa990387e72a9942572de4. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/ES7410300079.
Sound Of South Of Spain, Pt. 2 - Dj Jas Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x335c9b2b521ca2141a3453513be64789c999b2a1fb8ec98d6a7c5adf108f6219. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/ES7410700113.