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 0xb77951e2f7ff2a0328a768dfdc71a14d6b2e14b0c4a04527c3bcb8b5acc3b263. 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/eda4644f-a6fb-4974-97c9-9bebf419cc73.json and https://artists.proofprofile.net/proofs/artist/eda4644f-a6fb-4974-97c9-9bebf419cc73.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 0x0720290d24d9656d6d41fa098812de5e35033f87848776ef7dbadccd5553abd5. 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/SEYOK1210144.
Överlever dessa tider (feat. Alpis & Södra Sidan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba1b06b9efa68d86436e0623223dcbe4bb176c9d0a23c75c75d7eb8b799dd40. 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/SEYOK1210145.
Vid min sida (feat. Sebbe Staxx & Dani M)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e56717d7a549de324f2010fcd11e48d49ce9cdd0d4c154ea421e63353f003fa. 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/SEYOK1210146.
Ingen som mej (feat. Lani Mo, Cedd & Jeff)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb1d295383886dbd43ba2a9c34682736aa124a329a99005b06acc3fbc69142f. 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/SEYOK1210147.
Anomi (feat. Max Peezay & Pikanen Beats)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc11187b4688324d188a9e22eb72c93e18ef0a4ce5b7e5a4c41a495d292a6d9. 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/SEYOK1210148.
Legend (feat. Nimo, Sebbe Staxx, Näääk & Lani Mo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3903bf7a52fd257fabcaee40a1a87a50a6fdf5847be2ada021cc7851d98cba51. 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/SEYOK1213889.
Gå min egen väg (feat. Rhymes & Riddim, Robert Athill & G Punkten)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8382d370d94fae42f026aeb92feb35be39eeaab54b1b53667edcf556e85b7bd. 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/SEYOK1223292.
Hemmaplan (feat. Alpis, DaCosta & DC Grimsta)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849edf566a5d54fb3309aa499fbdc59b3083903d69efd8840d902e119b6f0ee3. 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/SEYOK1301365.
Arbetarklass (feat. Sebbe Staxx, Promoe & Robert Athill)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x828dee38c5f53b603712e399c7656277dac10db090a96c4c6e1af9b7b764057d. 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/SEYOK1301366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd537f7e3f550119486ee69f89074c86d324731198bb372388c0785ecd561815. 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/SEYOK1301367.
Slå dig för bröstet (feat. Nimo, Fille, Näääk & Pauline)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69add96d81e65ce0b4dc78cced90d747c828b5f2cef39d2ccd8ae8865f551329. 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/SEYOK1301368.
Sprungit här (feat. SödraSidan & Max Peezay)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb1f15bbba489e58412ae3ce5f3e91d1dd7a0e00877af99ef16f77a45832d1d. 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/SEYOK1301369.
Efter regn (feat. Rico Won, Adoo, Chords & Stockholm Highgrades)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ec97be344c7775336d44612aa620d8ead5ed35bae6fc5bf1df3483b4aa7aa2. 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/SEYOK1301370.
Tro mig (feat. Toffer, Sexfemman & Mächy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb78a871fec76023a92d172c055708d45f6bbc48fc88477b49c4ad6eda51483d8. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/SEYOK1301371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e366877689706c91861e2a0940cdafc5c52d81dda006f16cd0342b79819a288. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/SEYOK1301372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8382d370d94fae42f026aeb92feb35be39eeaab54b1b53667edcf556e85b7bd. 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/SEYOK1223292.
Direkt från hjärtat (feat. Medina, Alpis & J-Riz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1513d7b77bc852c695d0eac84e9841a2ea774deae3662d42d5c341ce0aa370. 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/SEYOK1301373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5276d7ac1111ae5338fa74b07089c18cb26ca1ff8d6583d017b7e4a694cdc4a5. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/SEYOK1301374.
Ge mig mer (feat. Keya, Finess & Houman Sebghati)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4278c935389c8e221d58fc6df30b55644d1fb47e347ed8f2dda69c2955357f0. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/SEYOK1301375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9320a24db41b3bb7bb66fac92c983a9ad720b0033266fcd1fd04fa238afebb0. 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/SEYOK1301376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3903bf7a52fd257fabcaee40a1a87a50a6fdf5847be2ada021cc7851d98cba51. 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/SEYOK1213889.
Det kommer att vända (feat. Blues, Lani Mo, Sebbe Staxx & Jacob Alm)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca69b5812db863ab6f76ef563a85c622c7e9fc0bf9f95e78b72d77539827474. 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/SEYOK1224641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1481bac92059aafd6687cd79cfca397eb1d2b6907ee94ee3129d32d1a9377277. 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/SEYOK1301377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d155df0ea7730efec5586ab9fe18bd7c051aac50b7f9f07dc8201d08d3f31e0. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/SEUM71501832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6339d7ff3699b98e48c598da87cd2a87b07774b3b1cdf7fd0c3c260538310d7. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/SEUM71601862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9acc3ca3026976a0d24a3729fa36d3cc546f83b061d9b0fbaa47600ccd1ee734. 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/SE6I32051415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82230c6429ae368400b81e2ad63b2a3e6d275633966f0dad789ad5c78b2aa687. 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/GB2DY2100133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5cdbd0999ec09459c6ff20a9a7f8857835467f61be060daaa01cc36ae7130b. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/SEUM71700225.