Triomphe (French for triumph), once known as French ruff, is a card game dating from the late 15th century. It most likely originated in France or Spain (as triunfo) and later spread to the rest of Eu
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 0xe8df93a8ec505d0e765c9ed31501799e131b7f05fca2c21db4ff780eb61286ad. 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/07bb69b4-0cb4-4f42-8587-3a54c6857e8c.json and https://artists.proofprofile.net/proofs/artist/07bb69b4-0cb4-4f42-8587-3a54c6857e8c.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 0x2f9f04cbb20efeddb1164a05f15acdb0217ee9f07a2d074cbf5c836ad1db839b. 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/FXQ892200499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c5d4ebca98d63580b420e2ebcf4cd9732b4b74bfb4ce816dba46fd0f2c2206. 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/FXQ892200379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c533d2226edb71eb656b22272c88aa5dcac2abc4edf9ef3c532d2f1362f6a1. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/FXQ892200497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444e4578ea98315833955a070b292470f53e165c624ee304c1aacf873f914b68. 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/FXQ892200498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c5d4ebca98d63580b420e2ebcf4cd9732b4b74bfb4ce816dba46fd0f2c2206. 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/FXQ892200379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd23ebdc26468a6a76b6d9a7301f131524860595c305d01af4e714abed38f5ee5. 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/FXQ892300214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x812750afb3dfed02e10c12ee0a845ada8d2aa0e797861ecafd074087af3622fc. 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/FXQ892300079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1575f8523e3d0f50d327e15ea858175749a4556208ef6605646a84bd62b2d29. 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/FXQ892300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x653de1c5421f496506093f390ccec7cc97ce21e626cb6b12b033e58c7e40e55c. 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/FXQ892200521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c272f10daa78f5ed84e457a8b0c180183d7aa978b2321fd3ad5e6dcf885149. 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/FXQ892200273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c6d3dd51bf5fa36e69c8f918c8dcef6c684089eec9b76b46e12b10762a457e. 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/FXQ892200249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629e7b9a8540ca240a215c64517fb47cc2d379f0dc494d87639ff97c751767e4. 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/FXQ892200225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4719dadcc7f2f251482e58262f15551bd99172b74251208060dc5da6f8626fc7. 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/FXQ892200187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee7df713d4104c5e24cd459d615528382de576cd5c0351c50d68bbe83aa84ed. 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/FXQ892200102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc369ff067b5c47e8149c12c6458579e7b0b96acdf5213bad22706f244e20bf15. 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/FXQ892200090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21351b1aa87ad7caed6ea1a7960d61c21c335641c7198e1a4b21c9592bdc3d7a. 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/FXQ892100084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ac13f007f64c606be318b963f537cdd0e691778458c3cd340bde7be4915333. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:45:13Z), 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/FXQ892100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22299d3037afaebf717d8b561e1eb06c97c10f2918cc3e5697a095e9491bc36a. 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/FR1A92101467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1add97dce95f6421e0d2783c3cbe4e2609cb7b30ebfcb4a29fd61bb044ee1602. 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/FR9W12103311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60894e52002c40508022879f227694d523d0506f63e3c2ef6a4caf7f7e001034. 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/FR9W12036634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389f3f5ffc15d250a2a92c5629f84de67a7a059d77ed6b85bc69ba20fcbdc4f6. 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/FR9W12033517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb94091c57f46f8160940c070dab328d884676d3acd6b4139769a3846f9156a11. 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/FR9W12027238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b098a93660d7bf14169294d6ffeadc33927f5b6de54133f1b455466ad9c2b3e. 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/FR9W12025511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc55c0a17961abdf05619fd495f72107a72e6576679076cd415c56083d519cb66. 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/FR9W12016284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f9bc57dad42ac17bf544519a34866896263f398cf18cffa453a6529a2bdb794. 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/FR9W12016285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e7ea1da800b352230aed65c02328815fafc237560ded34e7349584002cb305. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/FR9W12016286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa09cd0e7a2ed1f46c226931ad631000696f1d07bf108ebc5eeb8204666e5c9. 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/FR9W12008715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72983bd067b4d6620d29c686cc161aeb4f78738cdb48371082b7cc333f112cab. 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/FR9W11924214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x582be9a10c1c121818f21ee391635bd162e141164c7480e27575aa6e2d14820c. 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/FR9W11924213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92eb492cd2f2432154614147d18a7216544f6efc48f502a071114a7a55512558. 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/FR9W11919351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafc929a2e4f75532e4896f3171c44e5e8de6ab1dfd02e35f64ee59e1eb420380. 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/FR9W11916244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644279ecdb74cb4bf31ba66d37719069a1290d6f2a80855947ccd26936e7a962. 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/FR9W11908730.