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 0x1af779d1e95fd04e15a10df08d690adec3f3c90eb46f2ada2af45a94a6ac7fd2. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f805f191-5cb8-4735-9620-25cdc59f72ba.json and https://artists.proofprofile.net/proofs/artist/f805f191-5cb8-4735-9620-25cdc59f72ba.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Lea Salonga Overture: Sun and Moon / A Whole New World / I Dreamed a Dream / On My Own / Reflection (Live)
The Story of My Life: Lea Salonga Live from Manila
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 0x65f226babdbf524f0dae20d42f6bdc89365b931fb134296749c2590aa373c4c4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRB31900001 — a six-check JSON result.
Another Hundred People (From "Company") [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2f3fe8951b3062296a28f8627693d8f537fd750747de8436f853797412d6bf. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRB31900002 — a six-check JSON result.
I Enjoy Being a Girl (From "Flower Drum Song") [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa033f4415a666c47fc475c95d20aca70cd5e973937d257747722cca89a8fcb10. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRB31900005 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a97e665d38b03aff1e18d6b544090c45e4a3f893284a06ac4dd5cab78275568. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRB31900007 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f83cfccb761090f756bf9c4db78f7611da33459def7575db3a7c20a20db0ab. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRB31900009 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead8d009ce7848d26cfdde11cfae4af007579c6e9cb8c108c0a8635373bdbd7b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRB31900011 — a six-check JSON result.
I'd Give My Life for You (From "Miss Saigon") [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6e4afc81b3a304f916911c3adaea8558e6387d15962db58f2ad344f91049d6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRB31900013 — a six-check JSON result.
Too Much for One Heart (From "Miss Saigon") [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ce579f1a86737f7e7d58fb3aee46ae16b105509eaf5c8334cc6b37c30713c6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRB31900014 — a six-check JSON result.
Legrand-Bergman Medley: What Are You Doing the Rest of Your Life? / The Windmills of Your Mind / A Piece of Sky (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4976dd034cf90d7e61a41f3f59c69a3c6986fe5b0e36d977a0c30c5e52d90eb1. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRB31900016 — a six-check JSON result.
Something's Coming (From "West Side Story") [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d3926bac0aede74effe5caa47384a32cbc99ea83f3224b899f36b448d55381. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRB31900017 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e1b71121ed4808ae3c154f26bd816df9d2db372ef6754dac4fee091b8cc721a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRB31900019 — a six-check JSON result.
Send in the Clowns (From "A Little Night Music") [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bdd1ffe4905603a118c930136fcce988ba005383bdcfa7f4bbafb38a33f06b2. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRB31900020 — a six-check JSON result.
I Dreamed a Dream (From "Les misérables") [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b55e01b842fb671536ce9f0388bc6fc7b9886b0bc7696b301db890a65caf670. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRB31900022 — a six-check JSON result.
On My Own (From "Les misérables") [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d7e86aa32a9106e53f91caf4bba9bee014a6926b70a00360a5c2b53319f769. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRB31900023 — a six-check JSON result.
Recognition of Kory Katseanes, the BYU Chamber Orchestra & Cesar Aguas (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d5e5ce6fc543ca327310c8f0dc16f03417f72c85f48b61977f66e3258dc5cd. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRB31900024 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76fa74146a2b1044af41eced46dcdd5335e8855e854a1b45a55bcfca2502bc7f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRB31900026 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4d96e2eed67f88296dbd5ec3e59f5a2230366b7c57be38b8b0bfdfe6affe41. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRB31900028 — a six-check JSON result.
ABBA Medley: Mamma Mia / Take a Chance on Me / Dancing Queen (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03250782212c1c4d7542ce5d46c0c18fd50fb9a0d6f3b5f06bac515df9d750e6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRB31900030 — a six-check JSON result.