Speedcore is a form of electronic music that is characterized by a high tempo and aggressive themes. It was created in the early to mid-1990s and the name originates from the hardcore genre as well as
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01bccba46056e94779447cd7a03a69f116d3efacfef746dc1d4eb56e8c068b1e. 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/e157f856-6fc2-4be3-8cb3-20b83b2e86ac.json and https://artists.proofprofile.net/proofs/artist/e157f856-6fc2-4be3-8cb3-20b83b2e86ac.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ac1ad753b4cc3d566921307490278cc366ebc8f8c3c9172b1c95cfd0e5c644. 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/CH7812532443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547f968b1258979069bd129a6d95ad34585cf01f6a657a126bd8a5da3c8f0de7. 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/CH7812529121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71d274ab23de3a39a1a32f10e60c6a5352bb111d796ad1ee31e29240b6a9498. 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/CH7812529042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc02359fb51c9538a29dc1b83718f2d7a2ec1883dead63e8901f1850b588f6e21. 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/CH7812424535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc7c40244c3ffeb6e1d870e0952c0315f4bc48dfe906fbc3b007b83a8fbfa1b7. 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/CH7812530841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e54d742e46c935f37676bea3f50172e27b36fbe611f1c68a97e9f004e2be11c. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/CH7812415335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cde92c8468f19a4bfca6cab7d62b7b80360868db66a0a4a67e08ea4252930b6. 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/CH7812424896.
Sometimes I Feel Lonely - Sped Up Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f91b32ab657663defbd045a2c92669e17b3f04a6bda3d6e09733e37bcf081d. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/CH7812421814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ac1ad753b4cc3d566921307490278cc366ebc8f8c3c9172b1c95cfd0e5c644. 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/CH7812532443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e54d742e46c935f37676bea3f50172e27b36fbe611f1c68a97e9f004e2be11c. 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/CH7812415335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f91b32ab657663defbd045a2c92669e17b3f04a6bda3d6e09733e37bcf081d. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/CH7812421814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd2349da8505a3490937bea8f9450ea6a1b0696c1345e2be0faeb5e9c6f7810. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/CH7812418051.
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
You Spin Me Round (Like a Record) - Nightcore
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d237fac36b39ce88549efb6cee25b51861bd5df83ab082c955262f9e9cfef07. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/CH7812234862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ca73c7a5ba0a4776ae83dd9b191ad289c5464563e90512c2407594b2a465b3. 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/CH7812422210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b01b187c87cdcb7181d34cae1ce35a62008cee9c669d60b9ce977194f541e5. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/CH7812238582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecfc9230f2d3c8324e91ffa9284607a90c255439d1f99051d4253e9f2a0fa68c. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/CH7812239992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e730b4d8eb9e7506aee59589f74b7ad14563dd38375a21d9e3cdae099cb354b. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/CH7812237673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156478b9da652a83fc4b57cf3e3e738c5f899821609ea4b82da2623530b9bd27. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/CH7812419524.
Can't Help Falling in Love - Nightcore Sampling
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e811cb23043e6606554240e5c4a2652bb5cb14edfca5b81be9983bdeff633d2. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/CH7812343158.