1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xc600b778d2aa01cd0e1f3efba2a4c969c07ab53082382a507b113e098131fbef. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fccf051c-9608-4a98-9fb2-ab7cb264cfaa.json and https://artists.proofprofile.net/proofs/artist/fccf051c-9608-4a98-9fb2-ab7cb264cfaa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A Piano Tribute to the Biggest Hits of 2017
Sweet Child O' Mine (Piano Instrumental)
Welcome to the Jungle (Piano Instrumental)
We are the Champions - Piano Instrumental
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 → block OTSBitcoinBlock must exist at that height 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 0x483f7b193e0a84e44cbd54bcc09b14bf6408ddf7901c278040e4d6515555265a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SE5751898103.
Don’t Stop Believin’ - Piano Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f6117842d702ea1be332b38709029ae762c081ca59b32b7cb8f04ec8de3bb1. 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/TCADH1771826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d8187444fbd077ff16ed2852b398c8fcf11790296e9b55fd1b27fe8b702306a. 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/TCADH1771829.
Sweet Child O’ Mine - Piano Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8502f98253e70eb2e9dd377ce6f35849beac285101ddfdf2d9073a2547bd5f35. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCADD1761287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5887a8a9599baed1fffdf72f65c39b59bcda09ebb332675f27c3843ab2f56466. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:27:14Z), 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/TCACZ1780698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x671a6d83bde1ff4d4124771f462e58eabadd633a81591cfeb7a47e363393bcd1. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T02:01:11Z), 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/TCADH1771832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ccc684676e1acc37f90030922a1aca02dff268f68f275723659652fac509925. 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/TCADH1771834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e383072dd9d505ce9e9c4f1da99539116e5f44afb47d7903aeca30f121f1378. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCADH1771835.
I Don’t Want To Miss A Thing - Piano Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb04a193fceea67122f4fa0016acb5286befd669056373e890a222151e55303af. 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/SE6A91810882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x632b57aa7bc1457076741c9e52d2686fe6dea776cba91bad797ecc6eb518ad00. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:05:18Z), 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/SE6A91810883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e968eec2ec39b8dc5f18b081034dd128b731f9365e2566ec67afad0cf71812d. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T02:11:27Z), 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/SE5BU1852953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b79ddd48b6154b566387a87283332d78545c7eb034e63eeb44327cba6baaad. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:25:36Z), 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/SE5BU1895445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4ed6bd27bbbd6778b0e37c01c6e7be52eea5e59a62c27229c42f3a05e39c12. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/SE5BU1976493.
Rocket Man: A Piano Tribute to Elton John
The Greatest Hair Metal Power Ballads Of All Time
Piano of the Beast: A Tribute to Iron Maiden