PBL may stand for: Sports leagues B.C. Premier Baseball League, a youth baseball league in British Columbia, Canada Philippine Basketball League, a men's basketball minor league in the Philippine
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 0x02a2d01eba803142fb3786e3bf36f96edcb8ba05e3a01a767afd1744f22336fb. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d220c25e-e027-4d2e-aa96-fb034a597d4c.json and https://artists.proofprofile.net/proofs/artist/d220c25e-e027-4d2e-aa96-fb034a597d4c.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 0x7e9b4e5f204448eb4af808f3bfb634df5e0b5c441c3469e8e04f49aa606803c4. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/QZK6N2024596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35e3b34cd1e00dc2c86a8a4e34157d481dc734eff7edf1896f6b9944e147165. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FRR642300096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35e3b34cd1e00dc2c86a8a4e34157d481dc734eff7edf1896f6b9944e147165. 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/FRR642300096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d663ae18cb78250f18a7296ebed32b28497c043afd27c88eaf72d0ac65cdf4. 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/FRR642300150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa004e1045a46d896761f3d8f094babeba2509b710d5200b4a181c697dad8ee86. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/FRR642300148.
Un soir de plus, II (feat. Araujo & Enfantdepauvres)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895f87cdce6de5c41ece370a2ca555eddc8f48b6e47c3c4540cc65db452a6f59. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRR642300153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe778c896180069309ed05d87020736f29fb2a798197639d1e7bc3b6ea1bdbdaf. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FRR642300152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa004e1045a46d896761f3d8f094babeba2509b710d5200b4a181c697dad8ee86. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRR642300148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad245eb33f5140d7b5a690ad3dee38084dc117ff96925a28e2a6f089a8f8305. 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/FRR642300149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d663ae18cb78250f18a7296ebed32b28497c043afd27c88eaf72d0ac65cdf4. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRR642300150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd01b4eef2e306d776bff762b964f12c14d6181f8f7fcffa37af026b999fd0a84. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/FRR642300151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35e3b34cd1e00dc2c86a8a4e34157d481dc734eff7edf1896f6b9944e147165. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRR642300096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895f87cdce6de5c41ece370a2ca555eddc8f48b6e47c3c4540cc65db452a6f59. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRR642300153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d663ae18cb78250f18a7296ebed32b28497c043afd27c88eaf72d0ac65cdf4. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FRR642300150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe778c896180069309ed05d87020736f29fb2a798197639d1e7bc3b6ea1bdbdaf. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/FRR642300152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa004e1045a46d896761f3d8f094babeba2509b710d5200b4a181c697dad8ee86. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FRR642300148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2e4dae4e499d7dd19211dcd841e13b47979f32f8927bbe3a078443b142ec8b. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/FR9W12216094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2e4dae4e499d7dd19211dcd841e13b47979f32f8927bbe3a078443b142ec8b. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W12216094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf54021c66170638ad8b7708f3199c1d0186c455f6a7f4d79e020a82d30cf330. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/FRR642200147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46600bdb8bff1e57472ba21f4e9fa2e24dcfd7d30e8d79028488a13d9e731c5a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W12130836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2a4652ac401d80faca05a60c9e89a68dc385de64b0d5200ce973a133d401c4. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W12130838.