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 0xed5f6b8d0c4b3b7b8ec2f8ade4dc733558312b98d2582977e64dc6835c705ef5. 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/308ab4ea-bd49-40ff-b983-db2a78ea5c52.json and https://artists.proofprofile.net/proofs/artist/308ab4ea-bd49-40ff-b983-db2a78ea5c52.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 0x10f7caba9b26f6bdb42987356de57f2380a4c4fdc67a4ecf36c13f4fad89fff5. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/PHV021010878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19beb382e5eb97361bbc229f817b48e2b22d93341d40a6935739183348951e0a. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/PHV021010897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a2da1f4d3539c4c58db7eaf48cd034a30b3301243c2d6086056473ee17bd8d. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:30:17Z), 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/PHS090702498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c557a723191e036759ad727a635e68a7ab89ad87e352b0f2630a49694adc28c. 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/PHS091104282.
Pagdating Ng Panahon (Special Collector's Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b49cfc4a8ba27e82e853aa24be15ed722b4830a414dcfd1a0c8f4075aef5bf. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/PHV021010886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24280dfb912e5340f1e81f308468dca85e2b032e04ae87f619a933d930f38c91. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/PHV021014001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe988990c0c6acd8ff8680f23c28a674a3ab65e5a132dab0ba8c4a11c1991aaed. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/PHV021010884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028b35734aa19767575eec1cc124461b8e0112640b17210629cf8935cf5ef858. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/PHV021010899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d0911f23154bfd7a65c0f7afc5cc39dc46b0a51295abf4c47797daebd2e27e7. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:43:56Z), 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/PHS090702495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96434a2aa39a9b5d601a284a902dc93999e6fc0cdec9346c8d904d2da96918e7. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/PHS090702497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a2da1f4d3539c4c58db7eaf48cd034a30b3301243c2d6086056473ee17bd8d. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/PHS090702498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af6c01d9d9be6d1360c9473c22c9122eda24f5c71e401c4b25d5206d2490a68. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/PHS090702499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0333ee00aea9ee3722186afcf02bf74a2791e27c87e3ebaf83c7f71e3a07cca5. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/PHS090702500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd12de0a89d3451e0e0d10eede4dcc387cb87720d7972c970ee19a2aa59bb1e0. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/PHS090702501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x956140f8c34199e6e7e73d15144f77f7a4b9ba5409406e4782a834bc61388bff. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/PHS090702502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x226dc06ac5837de5a8dfd4fa0134b0c51814f629abcf376eaca8d8ebe2d5aca5. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:17:12Z), 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/PHS090702503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x946c81a07d86ea332df76e0bd519b29440c039ae64b735c5cdad9e3f67b099e5. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/PHS090702505.
Para Lang Sa 'Yo (Songs Inspired by "Ysabella")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb45aab95eb20bfae762b0662d0de77f72388a5a3676489c7aea29bb930d176. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/PHV021010905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e95d889f93cda83e5bb6ebcb117b26ae14fcd3003b1086b7815157457db3a5. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/PHS090903806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83470c4a7bd2572895368cf10a3c92b8b4da65c654784c246a8e32039ce29cda. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:41:01Z), 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/PHS090903807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369d70f6340312fd402f1072b76f46245fc1de0afcde85ea385b337e4caeea98. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/PHV021010892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c27dd33d16c2ec88ab305d654ac01fc7092c019c4ad1fa1bc42ba59d6a5eec1. Chain 2 (Bitcoin): anchored in block 958579 (2026-07-18T16:26:17Z), 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/PHV021010874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028b35734aa19767575eec1cc124461b8e0112640b17210629cf8935cf5ef858. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/PHV021010899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eb179166219d11dab0e276488d2ed01141e1db66c57682be684031c42cf8aaa. 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/SGA501012181.
Special Collector's Edition: Pagdating Ng Panahon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90cefe74749f4dfda74009cdc9306fbbaea9825dbe90b8b921269c7173073df4. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/PHU011514797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5006baf236df376ad87fdb857d5907dc34f5c0c5462f00ce00b2a01d20e591e8. 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/PHU011514799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d880b7647950724fe63ce13068eae45cf6e540b3e5462a06a8a029c7ec347f0. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T21:01:54Z), 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/PHU011514802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae7e0a2b750370ae4e7c9617c9de18d50c4f722eb6d2f114cd079d7e4184372. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/PHU011514803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c3de99ac6a1ea0ed3eaf964e0c3281be15ba5a2249b461d70c3d1c3d0f69c10. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/PHU011514806.
May-December-January (Original Movie Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf03588b0dbe0df83c36a9526232e91c4c8dd7ad848c27ceea07abddd471ac82. 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/PHV021010870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43870cd16aab3d4aa55d10c3793ec065a521d66dd8f4be054d479120977e3ab7. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SE6XX2572104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1b5df8adcf75553074b40915e45bf1e7016d65d7cb064766562a9f525ca30b. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/SE6XX2572105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b699bf1d67bf9551aa7084cf60e4496853df935516cca4a7e85070c0564ec9b. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/SE6XX2572106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9127896c1b4298d514d5e2b1f1103eef4a2675fa3d659367d386461f9950455. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/SE6XX2572108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad7f9ec62ed4e59f8063adfc4bb37504ae67e4fb8fc429a663c1bc656c75b1d. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/SE6XX2572109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c166a5c99b04af5487694bec45285fd9804d4bc32c279d80284a9020abccc1. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/SE6XX2572110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79e104ddcbdd787ac99563026eb815438cbe3bd31d79ee508ae0e6279af2847. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SE6XX2572111.