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 0x7e066e17322fd8f4d23d0536e07d40feda36304838ad187e7779ab528b17a72d. 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/36ec95d0-7c26-4cfb-92bb-ccc56d4ac433.json and https://artists.proofprofile.net/proofs/artist/36ec95d0-7c26-4cfb-92bb-ccc56d4ac433.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 0x4764d78b304bfe8a127a03db4936cb05d5cfb09aeb4ea6213371e7575b538ff2. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ATR981171744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389d1ba1a278f93791bbc43180da0dc78d84844922876cd660c753377afb4db0. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/ATR981171960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x471934d76608e3f859a9ecc01635642a7b16adcf71ba583e1162e3a30dc945e8. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/ATR981172040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd57d271b047de31e1ce843b7abf412c61e449e4111fef592224e0272ba0523. 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/ATR981172436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab9e7d0a6769be2b251b1e6a48bb69b2d2d505c0ee3acf5fb2efd2a23acd61b7. 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/ATR981172538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a231b2e18a14eff651860ebbdf432130fab9ed134d28bc61bf58a3455c1b14. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/ATR981172894.
Head Above Water (Originally Performed By Avril Lavigne) [Karaoke Version]
Lucid Dreams (Originally Performed By Juice Wrld) [Karaoke Version]
Happier (Originally Performed By Marshmello & Bastille) [Karaoke Version]
Rap Devil (Originally Performed By Machine Gun Kelly) [Karaoke Version]
Taki Taki (Originally Performed By Dj Snake, Selena Gomez, Ozuna, Cardi B) [Karaoke Version]
Without Me (Originally Performed By Halsey) [Karaoke Version]
Waste It On Me (Originally Performed By Steve Aoki, Bts) [Karaoke Version]
Zeze (Originally Performed By Kodak Black, Travis Scott, Offset) [Karaoke Version]
Mo Bamba (Originally Performed By Sheck Wes) [Karaoke Version]
Mia (Originally Performed By Bad Bunny, Drake) [Karaoke Version]
Thank U, Next (Originally Performed By Ariana Grande) [Karaoke Version]
Sicko Mode (Originally Performed By Travis Scott, Drake) [Karaoke Version]
Sicko Mode (Originally Performed By Travis Scott, Drake) - Karaoke Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9526b46bee22d452ca98129af0400288e55190cf73c90b8299e969eeb7e108c8. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/QZDPF1807363.
Dip (Originally Performed By Tyga, Nicki Minaj) [Karaoke Version]
Killshot (Originally Performed By Eminem) [Karaoke Version]
Trip (Originally Performed By Ella Mai) [Karaoke Version]
Kika (Originally Performed By 6ix9ine & Tory Lanez) [Karaoke Version]
Imagine (Originally Performed By Ariana Grande) [Karaoke Version]
Stoopid (Originally Performed By 6ix9ine & Bobby Shmurda) [Karaoke Version]
Sunflower (Originally Performed By Post Malone & Swae Lee) [Karaoke Version]
Saturday Nights Remix (Originally Performed By Khalid & Kane Brown) (Karaoke Version)
Shallow (Originally Performed By Lady Gaga & Bradley Cooper For A Star Is Born) Karaoke Version
7 Rings (Originally Performed By Ariana Grande) Karaoke Version
Undecided (Originally Performed By Chris Brown) [Karaoke Version]
Secreto (Originally Performed By Anuel Aa & Karol G) [Karaoke Version]
Break Up With Your Girlfriend, I'm Bored (Originally Performed By Ariana Grande) [Karaoke Version]
Without Me (Remix) [Originally Performed By Halsey, Juice Wrld) Karaoke Version
Please Me (Originally Performed By Bruno Mars & Cardi B) [Karaoke Version]
Sucker (Originally Performed By Jonas Brothers) [Karaoke Version]
Old Town Road (I Got Horses In The Back)
Going Bad (Originally Performed By Meek Mill & Drake) [Karaoke Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e28dcc33938a6d6ca0f682db6ba799587c187a8494dbbb1bd33c986b93d06d3. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T16:46:31Z), 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/ATR981196802.
Boy With Luv (Originally Performed By Bts & Halsey) [Karaoke Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c958beeeab51cb40a2e0f2a09bc0bc6605ec40c847082728a0ef108afd9e69. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/ATR981197350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe4a433e9f33bf9f09f171b258a419e73cd3fb4eb37e0d1bcd1418ba788c4cf. 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/ATR981203173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24da76815d865c5923953795235ee59f1e83c94a62111b4bf096437c44070a89. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/ATR981203881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cd5c13ebae98548fd1e6b134db64f08f47cd75a7293e7ff5f88803a8cf2a714. 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/ATR981203769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444a57b3e19d7646a69b5bb49dc985efc147ff0345a70d41d22724e80a15ff52. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ATR981204160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf27993cf6e3dd5e5d96df9a4e0b849605a6b7fd4d4714ada349a5af0569d2e96. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/ATR981206849.
Blinding Lights Originally (Performed By The Weeknd) [Instrumental]
Don't Start Now Originally (Performed By Dua Lipa)
Toosie Slide (Originally Performed By Drake) [Karaoke Version]
Level Of Concern Originally Performed By twenty one pilots (Instrumental)
THE SCOTTS (Originally Performed By Travis Scott, Kid Cudi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364ecc9d693fbe7c05b5358579c217719baff8252715a27a00a4af637c60652a. 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/ATR981209998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafee0f6fe2d62d125e7ce792228f3e8c36e86b768c0b04dd4c342f6b558f84a9. 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/ATR981210175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa9709d59a92efe1810994647d78df0f49f625382e5b356c320f583d66e8a6ac. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZKRL2000147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a9b02d5e941bd4d29592485fca958471c44ee36f985cec557371ad7000fdb0. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/ATR981211559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b47d757ab4d4e372ba15d0332580892deac4ad77133bc9cc80ba9e568e2c2ba. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/ATR981214129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e367d23d9933682d6909ae61af63415679c4eed65fa4428196bdab4be48571a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ATR981233405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x769d97c569cbe39c9ba911299a8dcaa1bcb8256411693f19882a28259903bbb5. Chain 2 (Bitcoin): anchored in block 956775 (2026-07-05T10:41:06Z), 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/QZKRL2100200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a611c95572dfbe38cc2c9dcae55a41c1cf670e926132361fa172f23944ebce. 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/ATR981266402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37aac16b401539bce7213329789887a7bbdcaf2d0b75db7c5e2a51ef5861b644. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/QZKRL2300059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b0b5cb8d3e2402b76cd5dfaecc2ca1c98d09f25fea723ff92507789b5bea6a. 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/QZKRL2300064.