thumb|upright=1.4|A pile of pumpkins at the French Market in New Orleans, Louisiana thumb|upright=1.4|A variety of pumpkin cultivars. The central and rightmost orange fruits are Cucurbita pepo, all ot
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc60afe602aec3d94807eb8b133d9e41ff1a07345447ec3b8002e604758226156. 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/a3c602d3-2d9f-49bf-8a23-f289b60fd1b1.json and https://artists.proofprofile.net/proofs/artist/a3c602d3-2d9f-49bf-8a23-f289b60fd1b1.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f8d1bf40aa69e896f45c5fc40f40d23eb6064a81178437109099bcb025172a. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/FR0U91401734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x597b66e8c46c75f546396258ffa5359c95d73656d6ca976f9775440769f5bdae. 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/FR9MO1800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x853843d6e069e18a28527ad66c44cb013964bffa7cd881ffdd3cf5828287b1ca. 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/FR9MO1800020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df2e7ca8a1e8b507d348a69a2e0f7849c53ab46410afe1e0da31309e260ab59. 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/FR9MO1800030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8599ec1d71c4a5b37ff36e619a9ca7fe72aee8a8308eb1d60873be91e5286fd. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR9MO1800050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d1aa0b04f2750e32a939630e5b58d5c6f49e2623c514368fcaf61aec5f8c6e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR9MO1800070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c8171a2ba76e8555a5baa4e0edc065d20df33e194095ba93f22c5e707f2dc4e. 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/FR9MO1800080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf520f9d84a1bc7b4181d342b359c7af98a7b310c85c5b7bd790c10743c59b2db. 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/FR9MO1800120.
Longue histoire courte (feat. Miscellaneous) [Chill Bump]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5370c40956c1e1e6c1adb5caf7d57606c8f1fb9a5420b3fef8d07f912a784aaf. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FR9MO1800040.
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
Science friction (feat. Sly The Mic Buddah) [Album Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeecbed1243c2498714de60c20feb528a1e988d2c361a7cb78f6bef8eded074a9. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/FR9MO1800060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b24c5ea076b5e24f7a94e3a0b7835046ab1caf912c0b4e801062650e4b1b8b8. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/FR9MO1800090.
Can't Stop Won't Stop (feat. China Moses)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498261dabd8f96ad4a3a8b8e3f8737c99ab47c90c599b3feb4d3a5f9b7013aa1. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/FR9MO1800100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d442d34e953241950bfb913ed09a0de63d1c9c22d3e6b09ff0379e007b89006. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/FR9MO1800110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb669ac10fef2b9c14e048aed3869cdcc19e8022cc7dfe4da0454f68ec8fecab. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:30:08Z), 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/FR9MO1800510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89da775ca698bb734f6fddaff7b07564972470c401760185432eb78405bf6ea9. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/FR9W12467776.