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 0xbd185748bc9c5e67235ee26ac3c4e804be654980893b741c16f9de8a306f88f6. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c0442d3-2b71-447d-a078-56dde32a14e5.json and https://artists.proofprofile.net/proofs/artist/3c0442d3-2b71-447d-a078-56dde32a14e5.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 0x678dc3c73957a70a5ab3168032b136b68e1b201ac96d8e4d08d127be0f88ed9f. 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/FITWP0300077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15fe093958c0f7734cfcef0a2ea9ac2fdba6b3928366bc74ed012c4be9e7069b. 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/FIVLM1000075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd04418020aa7ca65c1e871e40464797fdab4f1a7c1451bf3af467393b828332e. 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/FITWP0200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a81ff7539ad88396e21b6f2f0bf9f9333b2ce3e87c124d242dfe01be98b19e. 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/FITWP0300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617aeac428dda39b5f5dac08cdbc9fd6118fbb5f1beec341b2a123b9e547376a. 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/FITWP0700045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82069bf640e8be94c1f03f4cd16ff4c9ee7cb6ca2723ff33f04e0fdfdd3b2197. 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/FITWP0200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd828139804e032a03e2806fb25a5978f081014d21deef9ae08ab68ab05f2195. 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/FIVLM1500154.
Tuoksuvat tuomien valkoiset kukkaset (Valkoakaasiat)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a11841e8da982de6840442c46f639ca4270637bc31e3d7685214dfcd7e7608. 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/FIVLM1000063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b632908cf8232ea4ace2acfe162f3f8572ec3bca57cafb89f48d702b28883c. 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/FITWP0100003.
Rautalankaa - Tapio Rautavaaran Hengessä
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26fa44742e0a949a86bfc81c607c98d06238e1f4d421a6ec7ca17bfd0eec2593. 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/FIVLM1000081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88283db8f12a40531a255016d8829b40a8382296989415804ae7f7371e01011c. 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/FIVLM1000077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3206744c5a8bd51c14009d7b94880827d70d16a21056bbce91f1e5b246e4ac8. 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/FITWP0100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72bfa6948a325ac735e30fc8108475ff4a6cc11bc9978dd2c10a8d48ada06a82. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FIMTY9600107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fa8e24b61c8d6e6a0da482666a316208a03bea208f05c85108e53d35f826724. 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/FITWP0100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde43a77dc1f7e8712595717262d0588056b1fb153ff03de98ee062ee298928d. 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/FRX871529804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1412145c5c8239886bb45f546aa1a873e5de574209f4472fcb5adc37f52081. 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/FITWP0200174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617aeac428dda39b5f5dac08cdbc9fd6118fbb5f1beec341b2a123b9e547376a. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FITWP0700045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc85091bde7e8670e7647fe217b4c52bdbe24d72a2547f8dd979c9c0596a0b5e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FITWP0400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91415955d32cabd21763a9ecdc294f4d94bc9abfc01b0605811b095f3c8d2389. 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/UK8D41404516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482552e8d0379e14fd9ee1f5498a07aca460d787709313dcb129775ca64bb1fc. 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/NLRD51438286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369be40c1410d480c30fff1ee3c3dd3236e5d1778ae2cb48567165315d71a1c2. 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/FITWP0100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70057e6dd236ff4f4839bc5768dde64ffa47562683045a5c9ea5e9a15a020522. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/FITWP0400067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x769a1051a7f81435e5ec1260475b97bc81a50da15b78d6d5f143b03fe90bed0c. 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/FITWP0400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb866fa62f2002ab8b9c63a466a14c954ec7cf4ab2ea3bab838ebf587c739458. 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/FITWP0400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5e40f9f1fa32456c7a1cc523639fcc3c94fc47b05f3b6bb5a7fb8d4140f09f. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/FITWP0400052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e2d7eb68bad49d07b1474016806ff769fc6449658b533259babb601c5d0910. 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/FITWP0500111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5811079a735b264c6f097813a74ab8f24a49a048fb68b450580c086b2d6fc008. 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/FITWP0500022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460b4d0777504c9a2a0ef7d3bae6686d0d4798fd2d722af508ab41afe965b68b. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FITWP0200087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf507fa14e20b97cad2ae7b468b1a8063dbb57d2f56ccfec0ec754513327b07dc. 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/FIPTB9900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee41cc5bbb222268107c9fc6c86fe1465f3ce98672f9398ba293bc38c6219cc6. 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/FITWP0200042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8342149fa41823fb38b0d5d6abf6fc3c65d4084a3fe229a40a603d8dcfa32c6a. 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/FITWP0500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62050c1664fc6fc0eeb3806b1f7d31cc701a23eb0edbb281d5db45f482cf603. 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/FIPTB0000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dd7b72232cf18a9186a1bc92ccbee259ccb76ac97ea7921823948380c56cabf. 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/FITWP0400077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25fced69ccb5d576d5cc707b5b03b142c610362d19868b93962c68232fb1085c. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FITWP0300082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b9772c3b6780eba261e1cfa9ee275366ee89a304d4a17933dc2d1461614327. 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/FITWP0500051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x813783a2fc2ebed29803520a38493c2d2874de18eff1efdc30ac21671acc9e3d. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QMRSZ2000509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e0159ad44cb03b4fa1b13cf932652022a746d806fcd8730508df52865b681b. 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/UKELY1600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb1520a33c10e0aa5784d9cc2f87bb1a324744ee259b3eaafe601d035ac65ad. 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/GBBXS2036876.
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