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 0x1d0ba0b839af6074a3482bdb1c17d39c75378d99cd705d695908be25b119fc06. 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/6f7c09dc-037b-445a-add4-8fc6f5c52ee2.json and https://artists.proofprofile.net/proofs/artist/6f7c09dc-037b-445a-add4-8fc6f5c52ee2.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 0xdeb18c71541d2f6f406d1b75d33261a95bddabde8d3d3a8345b2ff57fe58facd. 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/UKRPL1900227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78430ddc1e01857d9e0d8351f660deb9910ea1b67e0ee5c79cd4f558e6d90d43. 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/AUEF02001058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x933112f1b9cca5f0fd694ed03e55a5d556c015213e9225226f2d32e19e134c33. 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/GBJAJ2100116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec9966fd7c6884706ec83284fe4c535dc06ae1b13afb1a5f7bd03063965816d. 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/GBJAJ2100130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f165f4518dae13f0500af3609fadd261da3d7ac8923a60bb1210624615ea470. 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/GBJAJ2400804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f8a66165ea5d83e58aa52e1f9704ec3a0214e7cfcd6b5b910675a021d83b8f6. 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/GBJAJ2400803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0424177b1f41ffcac4924db381da16e72fc24e2288703bb1aabc4040ba2cd399. 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/GBJAJ2300616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe9e164413d240f2425f5a2df512829ede5f3536c5771a1d38cf0ae16300a7f. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T10:09:18Z), 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/UKN6K2202541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13807a70585a1e5217975076b3fb7353a588e21f73dc9fadcfe376e906e0736a. 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/GBJAJ2201356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4a1505c3036138f75242e687ce1fadd2d33478c2af0271a6a9d18e89989584. 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/GBJAJ2201357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1fd4f740bbe73970bb1f07084f7c3b4656930723205f08562050728ae01943b. 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/GBGLW2200829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe254c40e231996cea68dd082b46b0b01787397f970b9b1f2f794b8a58f14283. 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/GBJAJ2200933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30bebee0421b2304f54b659843f6ab0d66ed2c6bfee39e2786aba3dc2b142851. 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/NLZ542200369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a38939ee8e1d8d04d19e9e700557d32b62d2239f3b3a23a36a448ee85cf5ec. 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/GBJAJ2200350.
Show Me Which Way To Go (feat. Lauren L'aimant)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2162a3ba400332e8368b62550813e6613df3e2a2abface8f505475a3a49d18. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:05:06Z), 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/NLZ542101869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf2ad5ff146f25efdc41de9c3da29a8ffe2b3d2dd6aeada31209ee455e6b62f. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:50:47Z), 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/NLZ542101539.
Sweet Side (feat. Caitlyn Scarlett) [Friend Within Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e428106f650613eec1837299b2906165030fa01d0f003b4ba45100bad504905. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T17:36:23Z), 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/GB5KW2002194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64dfc8ef2c1d8055c1a279a23bb3064b214777a358717cd0b05b53b35d338243. 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/GBJAJ2001498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb20fd2727f61b366b5b967adaaff5b1f3d118f4151063075a42de291e6bf2cb. 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/GBJAJ2001358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996626d81d37f996bcfcffc8f963a9878b282271e50ea292d7588643403592e9. 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/GBJAJ1902698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51033c4ae48044d36b14a2be42b4d09f13b9eb7cb51978166e8ea0bb294aa254. 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/GBJAJ1902699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a538ab75e60cb7dfdda573de7cf2fe1f9cffe93dde419535140b0eb88963f47. 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/GBJAJ1902106.
Post Malone (feat. RANI) [Friend Within Remix]
Post Malone (feat. RANI) - Friend Within Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02ae811b35f58f3867c90a2a5b3603ce1ac2186fd2d166f70c040fdab307a60f. 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/NLZ541901273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfecb78a49b78183005871ce1c7a525baf220a895452808820d288ef3a06b472. 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/FR59R1981159.
Pump Up The Volume (Friend Within vs Greed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x790f19c07eb70de81f49641bd52ba63a1151f33c3b0e376fec30862a32f763eb. 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/GB6LY1600238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2458d5419b509e13f62c328837b394a5cf077a7874876741e8934ee721dc3eb3. 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/GXFCP2500053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2458d5419b509e13f62c328837b394a5cf077a7874876741e8934ee721dc3eb3. 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/GXFCP2500053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb42a97bb74a26603a1d3f7d0021ecbd469541fafa5b065b46718c26a1aee3a6. 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/GXFCP2500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c8dc6d873a2d31633e14e2d9dc02a7c85266ae35a8183daa43288b82ef8f049. 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/GXFCP2500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x192671f059f5fd838057ec610d2711afbc5696b3b5cde21cb1d04b1defea31c0. 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/GXFCP2500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f260fabdf9d300b88ddb916506a951291add7008dd3d1b86d9a82bfc4f496cc. 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/GBJAJ1800677.
Deep Down (feat. Never Dull) - Friend Within Remix
Deep Down (feat. Never Dull) [Friend Within Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261b259162ad5f41733c72deebe48d196ba0e7c8fb700f99d1a603076737889f. 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/DEE862201250.