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 0x1ca2ba86c8aeee31a20d387d0789b6173cafe74f43ce9671fcba29d6fafe2cc6. 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/dcd143e3-7122-4503-adc6-3265058c2dab.json and https://artists.proofprofile.net/proofs/artist/dcd143e3-7122-4503-adc6-3265058c2dab.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 0xfd3a962df11f6f1e76dc77d588f930187f94ab7937af9e16a6e576d543cd116a. 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/QZTB52279991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f8245a3ac6d8011e8823b41fd1ea5152636cd6bd64089d1ae009747efd5240f. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QZFYX2348366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4fc1bf4ec1fb923bdec356e3a7e6406177fd42eb3d5855ea3e9d209bbc9e868. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZHN52383494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b7821966a3a0607e112cf9a7f23cc0d31e92142558dcd215cb22fd585c69c1. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/QZHNC2363133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c35dc43a8677b517f1f8510019f22a0604ae3a316b8b3ba01936641e9373889. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:37:03Z), 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/QZNWX2355685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf809a7d8d7418905efdcabfb37bbecb44035be8a9b6c551ee720dd27a72fdf45. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZWFM2324633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c2c9c71ca0a0e052285d66ae96ca23370b503ed8cac0e197e9dec8d9e3d22a. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-22T00:39:18Z), 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/QZFZ22454180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1abbfc93f2e5a6d822f87fbbf13dd75e4927bb43a499c62181c19c883c92777f. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZDA62430492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24c9a4e23ef48a31abf880d43a6a88a01ac8b007e1f1242d436cc1721056b5d. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:20:39Z), 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/QZMEM2445983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc2cef19e6ffec76d592688d2bd69da023f93dc63b6cdc8fad33ecf353c7778. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:44:48Z), 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/QZTAT2474821.
Eram fericiti, dar nu stiam (Acoustic Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b2cfcabf3157a20f0edb9a1a47f3a20906261d288f15f338458289cc4d0081. 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/QZTBE2414582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x037b979db8b6e76301cd43aa73d1e57cdc5ccf1713b14f8d7e0fd4daa5de83f8. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:42:24Z), 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/QZWFP2430318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x907c930ffcb4ac621b9fc9431c2065c7b27a418d7edb9cd3908fca048bd17bf2. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/QZES92536820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d6d8dbb4e01983a4b2bc78c769e18126b0db11882f1ce778262e3e2d4f0332. 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/QZHNA2546788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6daae798067071856df0de45888ae62d7f7810747002a5ec043166dc393b690e. 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/QZNWR2576666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8054e9cb4341cb5f1d67dafe0b27ce784f29ac5179070fd5dfc7b62950f9e7e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZTB42534504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb9d93c0aca3b0c88a43a3f3e5143a3f62acd906bab0a8c9c9a8b981db704f98. 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/QZWFX2560356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd71c490ab97cde0df9a3f7df18a1374f77aa79e241f638d0be3baf8f359703. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZZ7S2502046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16deb5e11e5bb88784498e51fd33a37015066995576f8b96cb36d2a9f1062146. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:52:24Z), 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/QT3EX2596709.