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 0xbc20acb1f57b1cc67024fc4fba08530a4324edfb8d539a9adc404539995fa600. 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/33ff6b2f-8b34-432b-a5fa-d99a440ca494.json and https://artists.proofprofile.net/proofs/artist/33ff6b2f-8b34-432b-a5fa-d99a440ca494.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 0x8f2dc2544ae89bf5c2237eef8b64bb8075ccb162215c758250a0e11629bd42b2. 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/USN1R0503006.
Saving Bikini Bottom: The Sandy Cheeks Movie (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x030fffd702c8d18261b76bd436a38d4d2e4c52579354b5c96aed82c2dbf7f905. 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/USN1R2425001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a15ee52f0bbed96009dfba9c8d4adb57a60d151bbb560891ae2abff68f84395. 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/USN1R2425002.
The Amazing Flying Cheeks (feat. Linda Perry & Rhodes Gilbert-Perry)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa335981a441f35b9ef965f5c7131f5fd5104f0280508d4789a1fb0f4dfa78b19. 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/USN1R2425003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe20018378bb9482b36851fee8a5843e55b378343e29deeec097c33372793722d. 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/USN1R2425004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f8455588432578186dc2c4669fe3a72cf8d7f2ad0c1e7c755352d569a83327. 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/USN1R2425005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ca198d7e13a0eebaa0795905aea1d40bd1c28da607a6b8bed49071254b39b0. 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/USN1R2425006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe016134928e92e311d8aa4f7ec223817580dead213cdf2c2b18ccd18e74bc63c. 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/USN1R2425007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc0f5ecbf79279b02beb78e0962a4283071d43fb0d1016fe32366bc10994db78. 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/USN1R2425008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade6367b500fff9f2325da57575e0af7a120000f53f2b475a8edf14a62653bea. 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/USN1R2425009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb616a3f3d46a4d718f06c46319a6f846b9d2ff6289eb61a1883e413089663c. 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/USN1R2425010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b48a678b95b266163b0e71f11a0f352ede952af7b45608b08371d9f2349cc2. 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/USN1R2425011.
SpongeBob SquarePants Theme Song - Hip Hop Remix
Nickelodeon Mix It Up! Vol. 8: Rap Rascals (The Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb356d73b214d943f827beeb1359111adf5454e5a909e77a1221e3852d989121. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/USN1R2403012.
Nickelodeon Mix It Up! Vol. 5 - Hip Hop Evolution (The Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x663127e3f7dc45ad6291b084d48235534c3b80d0a002e7a35a5561aed6748808. 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/USN1R2327001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b44e76eae60565ffde71590b11d454361c5d93eac4e49c6c6e45570e6457950. 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/QZRP42328596.
SpongeBob Squarepants Theme Song - Electric Energy Remix
Nickelodeon Mix It Up! Vol. 19: Electric Energy (The Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9830180fc8eeb61af6e53b20a6772552f2220e891d8a13115779b9e7fe1926c. 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/USN1R2501006.
SpongeBob SquarePants Theme Song - Rodeo Remix
Nickelodeon Mix It Up! Vol. 17: Remix Rodeo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf53620482d353a239519cd26e41608139f45e22e1ed5e697d4171599b136c1c0. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/USN1R2442014.
The SpongeBob SquarePants Movie-Music From The Movie and More
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06b7076ee1bf63e4feeba24348168f9ebf558d48866992f7abf20b8f221a115d. 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/USRHD0430193.
The Jellyfish Song by the Jellyfish Band (feat. SpongeBob)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x396b887aa27dd016b4203aa18002a5d2fcdf72b5c9f43d925cbe4cd89b7a142e. 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/USWB10403632.
SpongeBob SquarePants Theme Song - Afrobeat
Nautical Nonsense: 25th Anniversary Tribute Album
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf79814b738dc4193b63baff380100c27bafd6d99c452fb8999ae8d97e94e5be. 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/USN1R2510001.