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 0x1dcc906aa55bcc75c7c15b3b10c6381340fe065fa8261f6e50c08dbe1c7f33d9. 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/295919d3-0364-4af4-bec7-4effdc5a6e23.json and https://artists.proofprofile.net/proofs/artist/295919d3-0364-4af4-bec7-4effdc5a6e23.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Decadencia Reverb: Lo Que Se Pierde Sin Querer
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 0x098e02c6c235508f85ed0cd1c6446bbb00e8c5aaf88d404cee59e677388cd3c3. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZ5AB1784878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d1f94543a9220226d653c9ef977c4b3ee88e0b67e52a09d7d73d468527c36eb. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZ5AB1784879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55a38060bc094e03676751fbac957d2365c816493800f0bc2e5f91beace68e5e. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/QZ5AB1784880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x742c4cd50404a7640fbd1d316e76f653a7b7e6ae16d41120ecd2fb47a663c892. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:54:11Z), 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/QZ5AB1784881.
La Nostalgia de un Cuervo en la Ciudad, pt. I y II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4374311d23cc769805910243b4fc03c64b2faad9bf3a48cd9ef96311b897401. Chain 2 (Bitcoin): anchored in block 957833 (2026-07-13T09:36:32Z), 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/QZ5AB1784882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4811180979724b73e3014240a34b3fb1dd3f79f327cedc437e0eb916412a33a8. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZ5AB1784884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5dffaeceda2932213734516fee03a11c068dda40b72dbca8781ae0ba211506d. 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/ES71G1913256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fbe896ca520f72bd196a92db89b11e8a10aa029470a5639c97994fb67d64c36. 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/US7VG2086007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae39b0a17815da0fb07224db6004c0003c97c4c4c43fa092a4058a196fd502d. 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/US7VG2086008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf0bdd35aba4e326b6fb202cb080d611b1b02b4153c486e3c151e41bbfc89602. 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/US7VG2086009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b34870650d0dfc98a34b849e5daf582cc37bdbe631d592853455425221f8df. 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/US7VG2086010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x813ff7b016d8f8c0259f3f2ddec6d772ffe6f68eb6d402ec012cc35ed55e4114. 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/US7VG2086011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb21341d23706b3d78e0b263ff084c54a6e43f8b52db63b6272c24a28feab74d8. 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/QZHZ41993906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd303b3698dc61a72db70a94c6da8905d6314f2f89ae034dadc7f965ba6717d0. 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/US7VG2086012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f4da09621f0e710467147d4664f533d3aa89b2b146f5a54b1c5770ba71a99f. 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/US7VG2086013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x625344c9c00c11e5afaba0aaa235e9cb029851287087fafc90fbeee64797134d. 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/US7VG2086014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd344f6e0109bc511c42da14e335c84ad92566a4612051f191acc32548cfd355e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/US7VG2001264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af34a22f48547955fb541b9b8ecfee58b07cb30c9dded71b9f5b8fb588ee647. 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/US7VG2024653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc0bf149c7381de31679348b0652359c8c6b911bff0dfb78631912fde288836. 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/US7VG2086016.
La Tristeza de Estar Lejos (Petricor Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b93f3de79aa7c3335e3bc659984d576de2ff2903d7f947c6b5ae145615aac03. 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/QZNJV2084996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59314eab853047c1f085ba0089e680a73964cba3d37968ab74b47479d47795ad. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:57:45Z), 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/QZNJX2188730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c540678e966f87c19bfb8a2c0da1c47223d03bc77645530fe739ddb482b3608. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZ5AB2224453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca9413fd30d7eca3e2d7b598aa03ff4362b398f6772c52dfaae71a190badf4c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZHZ42298556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67c39043fd589f79cdb095b07b603b12ddf5222e54358bb6817a282313c1d38. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZHZ42298558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b1658d4840897f340d249e7977f3bc23e998f98fe9dbc35ddf681b29dfc94fe. 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/QZHZ42298567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f86ed546a109cf4102dbeaed34a1964f1810f39585575fd133f3c2d1165bec5. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZHZ42298571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7e739f1ad1e72afb2da0f12f2acc4e50dea3fc1ef786cd31d5ce631d61a5c4. 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/USA2P2458659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed8073c16381fe6a9ecb2b88abcf44fb9f3594ecdb40c07a6f47f464be076652. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/USA2P2449676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7e739f1ad1e72afb2da0f12f2acc4e50dea3fc1ef786cd31d5ce631d61a5c4. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USA2P2458659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ef46bab46b1e495150bdc8eea2944bec32d83677b548ab54cb55dae034808d. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/USA2P2530955.