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 0xf489c697640b494d8600afd753daf3c1bf766305f43a4fbdac87dd7e34b639c0. 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/a49ada96-b3b2-4eb8-b0e6-45800289eff4.json and https://artists.proofprofile.net/proofs/artist/a49ada96-b3b2-4eb8-b0e6-45800289eff4.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 0xf40d4dadc8a6bd8e93cf43a3571f803f5027d3b77402e3877d64e90b616d2cb1. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USMO10400059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf815a2652c47f0d8d8706ec1a8e4344da0fb16b88c9ffe0f98a76efda1e9cb. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USMO10400065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446bcddc1d622830387556de76ed2aa2ff4f7ca1fb15a9dd91820f91286861b7. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USMO10400066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfacebb57264ec8a86629228175769b6990cb53578917666a80b5534537732f6c. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USMO10300895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x047ff999393601b5c4cf5e85ecab615d141583121b54f372c17b70233294d1c6. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USMO10400064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e54a650d2f5a936bc384da4d9ff9fae124f7b63f830b7ca55db34bdb78597f1. 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/USMO10400060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x080f8fa8992273b00f310a8e19a6dd868c6312024a0df19213f858e56c38dde5. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USMO10400067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9058d40a086df160091ad073e6b966317172bc615e437b4c75c4a240ead9d891. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCADK1756004.
Brother To The Night (A Blues For Nina) - Darius' Poem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a40361a39028798dc85c151bbfc0a25201b69355c3c1e7ff25f3771cef31c09. 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/USSM19700191.
Hopeless (From the New Line Cinema Film, "Love Jones")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2329066f11ac0d0c376b5586c1a5410be31b98838502ea94eb5c019c12cea637. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USSM19604540.
The Sweetest Thing (feat. Lauryn Hill) - From the New Line Cinema film "Love Jones"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c6df08edd770c343caeba2df59aaa63ee2a01070f3434b750d2a6d78e6b7965. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USSM19700192.
Refugee Camp All-Stars presents Melky and Day
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a4c026060142fab425c15cec97c51d22581bb16b2f351f7e2714098ff53623. 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/USSM19700193.
Sumthin' Sumthin' - (Mellosmoothe) [cut]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20085788c74e81ac20eb136d1d229e723839010b4e26e9ab8afb96bc0dfe26db. 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/USSM19503485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc0698d276556ee4d18fc7455afea23ec322874037b2ddf0a51ad72946213ed. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19700194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b5f50ff314010fedc9ea376c3b4f38951089f1e4ff562b4491cecd069417b4. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19700195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67fbe76a8f2ca2d6ded38fad10239a862b06cf514f6c6d7b3ab4731d5b45f636. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19700196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d4c75b0d61eb9573e4888a55b36b35b0101de55a1aab5115291a384aa984232. 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/USSM19700197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0511987165b490f7ba8e19bca9a4be53be472853229f9664ae38e9bcc976e2fa. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USM049500040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24e592fab53ed67d437da59f865461f7d94b07419e0727254e0a861259156db. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19700199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04592fe2f065134876cf855a3e6cd6736edf91705dcd0aadd620e1f4ff9c4e6d. 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/USSM19700200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5317fdba956dce24df375a8e7e49c1c1e26a0b56a66f6a5abf9a6e36e5cd1270. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19700201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9364f5d704deaf866024fc81f4875738cc313d4da0d82d2ccedc062369b388b0. 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/USSM19700202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f30bdda9dcfb6a31c597d92939f03e32c0b07f4b0dc07aba4c0ec04193c81b1. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWB10103649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb0057814ab611aac124eb2e87dedd794afc1460b4fb8701957b524f6a1af4d. 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/USWB10103650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ba7ca6564df434ea16678d61cbb7686bb8761c6cff73367f559a5a7cb407f2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USWB10103652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b6800781d3f495c9cb874c4fdc1a044dc56b833be25b54422f449ec47760ea. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWB10103653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df2b1d70104da794972aff9b07382005344d3d29ceacdeb13bea4ecbe620231. 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/USWB10103654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b26a360d887b26cfa2fbd0e8a52074847789d7fc7e7bfa4619a3d1b3a3614e. 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/USWB10103656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x546dc6fab726f55ab7edc3e48549741d62cf6004fd7dfc80f2600533233cf63b. 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/USWB10103657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaeb62ed8034b08da2173536266c4300534f11745a76a581e817a1bf3d328cb1. 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/USWB10103658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46830060b6e431b5a0954d2ac5b9f210aa3670f2ffb447bffc7e8d847ec98e23. 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/USC4R2214734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e91dbd6d56d92dbbc960add442b212fd54285abf5149d011ed59fc8f6736f3. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/USC4R1706122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f3790074412d6f8db14e993b3fe1b64cad345f5b774ccd11e3f6f1c8d53e5fb. 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/USC4R0614010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb102d52fec5a14c0c3afb7c6a3af78699073fa32eb8c41797a0bea7ff1df6afd. 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/USC4R2007289.
Sacred Dance of the Demon - Gorgon City Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1077d5459350234b98c5bbb30a63d03871842632b1fdf470858dd7b63a5a40b0. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB7NR1615803.
Jermaine Dupri Presents Twelve Soulful Nights Of Christmas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f87207d090cddb27184f354a744ee4175f6c025b291876bb841413669c9b95. 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/USSM19603201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8858f7f4392facda9203b600d6626ff35f541e9359c111d70cf72ce8a1f655. 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/US2S71782002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a03d596692ac179bd936126ae396ce3517062931cf34fb487aa1f6a500e5cc6. 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/QMRSZ1700207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd395ab1f06600cec223f189ae2f20f076f6d31e24817e09d1c4db49be3fca156. 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/USDY41707994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59f98d641e03249247f1abb5abd5c6639d3f039d46dd8441a88ad29a09966771. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCACL1659987.