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 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 0xb81da6d82b8395aa39d00d8bce2ebe392be1e92dc44e6843766f43dec5d6c286. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d88fd2ce-9aa1-404a-a5c4-852967defb35.json and https://artists.proofprofile.net/proofs/artist/d88fd2ce-9aa1-404a-a5c4-852967defb35.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 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 0xf2bd7df0c823d034dc07ab0145de4368ec25f8371b431e4647640aabf706bcd9. 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/FIFMF5800061.
Jazziskelmän kultaiset vuodet 1956-1963 Vol 5
Romanssi - Kauneimmat klassikot kautta aikojen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c1ffb4c733959c30f89c5446ee62363856e2d9602f366a7a481029f0e3a24b. 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/FIFMF5802400.
(MM) Suuri suomalainen säveltäjämestari - Romantiikkaa / Iskelmien Kärki
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6402e096f0346a5ce0bcc1d677a681c69d6a177bd8ea373d165b7728123840c9. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/FIFMF4500200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e0f131d93f42215e968b14fc9335c03067d57ebcda8251d47f9b227763e5563. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FIFMF5101900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6bcb82b5e9c1f2419546e5aac0e866fbddf7ec1c888a6028733535209c0bfaf. Chain 2 (Bitcoin): anchored in block 960384 (2026-07-31T09:54:03Z), 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/FIFMF1237972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc9ff8997bbedb63456dd00ec93181726ccf977fe025763fadfbc990e961be84. 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/FIFSC6301900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8b8f98329690b160dce8dc4ee481bd9bc8844d7fc1b99b846bd5fe01365ec6. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/FIFMF6301000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442f00ce092105a34fdf85024d6a645905dba9bb67bdac2800b649a85f392684. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/FIFMF9001000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b183b3da866ef4d41098181660ec83272e53dc061b1581b24cdb6391c0c44f6. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FIFMF9000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fcf46466613fd45034e7af8a907f1519a9a9c953abd5eb1be1bf9ce1c12f417. 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/FIFSC8900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8bc92253031b737d31339f90ca9f0e517823b37133b7f639caec71ff00080d. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/FIFMF6000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10532d349628bd81473266d48ab208208fec57b0c27fb9b99d8f1b19d462b19a. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/FIFMF6500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd51cd414a7b6f7cc5c55ff9cb9094aa5c688131541a1438d4ddab7143e8c99. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/FIFMF6400400.
Suuri Suomalainen - Unto Mononen: Muistoja Satumaasta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc681205c43d7382ccebd92e5197d71e26dfb678479f3ef9da63e500efc447b. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/FIFMF5700076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c0d195a1ebed4c878485cd848a4c9c281f3cf085f116fe3a6eed5037941f53. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/FIFMF5900032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d263dc557270f7e88de15b27cacb04f8b5a7c9b6f759a22194666ade3a02b7a. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/FIFMF6200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4fa78606eaeb86b353a28fcd591f181cb0d2b48a55447719d0e2c0d27201dc. 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/FIFMF1236562.
Jorma Lyytinen ja Ronnie Kranckin orkesteri
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444e1a0bbb0d2dc00d8c373e566544a4a31bde0981c87ef3756e7605827c4263. 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/FIFSC6200800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13a80753b80a1bfcfefb88a3136438d40cb1da8cf4a2765404f2ead2f87622e. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/FIFMF7600049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6472de4e2d1dca40f2214039fd1816f6a2c97a660534f1d8461a16061089c213. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/FIFSC6303500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10532d349628bd81473266d48ab208208fec57b0c27fb9b99d8f1b19d462b19a. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FIFMF6500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2986d314cf8375a8d0b1aaa1b45d783079a39657cb5b51e75f8eb514b6dc74e8. 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/FIFSC6300037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23740f419fffc7f4eef898d36f84497e5bc076a12f205fd176c398b39270a46d. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/FIFPS7800035.
20 Suosikkia / Suuret suomalaiset tangot 4 / Unikuva
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfee388f6264da7bb872cb61090767520dcfb5c27814a14d54d08c29ae16aa64f. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/FIFSC6300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb13ea6c5e3db1207d85247586de6c055319272c6c235f1a41f5bbead9929101b. 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/FIFSC6302000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c51f334844985fc104ed34fbfa70a752b8a8826b58435973f9d65c0965dc8d. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/FIFSC7100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x232513c96a44db189c1fc99293459e7e7f9594b9670165d16a34e6113a1f14df. 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/FIFPS6100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdadf62c64930d7de2fa69cb257f206c293a73e12dbad117b5abc8c5fee0662cc. 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/FIFSC6301100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8d0b5e7eefda6d7337fa75ecdf70e9cc39fc176e8c0834cfeb7086df54c033. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/FIFSC6001400.
Tähtisarja - 30 Suosikkia / Suuret suomalaiset tangot vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2986d314cf8375a8d0b1aaa1b45d783079a39657cb5b51e75f8eb514b6dc74e8. 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/FIFSC6300037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6472de4e2d1dca40f2214039fd1816f6a2c97a660534f1d8461a16061089c213. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/FIFSC6303500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc9ff8997bbedb63456dd00ec93181726ccf977fe025763fadfbc990e961be84. 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/FIFSC6301900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba576c227adead2ef14d0f0720e2ac8f8259ce4af12ffc23e1a704d37289f8ac. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/FIFSC6500025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442f00ce092105a34fdf85024d6a645905dba9bb67bdac2800b649a85f392684. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/FIFMF9001000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1856254de9bdb508ef8550d7d085e142f8020929f1c3f1c1738edcaa73e3283. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/FIFMF9000055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e5e60d91151e5b276c6c8de55dead8d519758ec05aaffb8b635281ac7d8bc3. 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/FIFMF5301700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11e8aed1b0426893e2309928c462b1160a19a68317a2d0aafe7cf64ce170cdb. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/FIFSC6400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x424814b0d680cc3eb098f30e8ab0b80737c4c6df18ecb32c76bdb942bd1f27fc. 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/FIFMF7600048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0536918519d2853a4275fb274cc23871a2f1a4dce16a39e601be89f9a7cf65. 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/FIFMF5602400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a1ffaee2ebc141847341b9cacae09e3c095bf777b4066b4aa8afa97ec482332. 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/FIWMA0700819.